diff --git a/tile/AEBaseInvTile.java b/tile/AEBaseInvTile.java
index bde1f409b..e3efde003 100644
--- a/tile/AEBaseInvTile.java
+++ b/tile/AEBaseInvTile.java
@@ -1,7 +1,5 @@
 package appeng.tile;
 
-import java.util.EnumSet;
-
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.inventory.IInventory;
 import net.minecraft.inventory.ISidedInventory;
@@ -16,7 +14,7 @@ public abstract class AEBaseInvTile extends AEBaseTile implements ISidedInventor
 {
 
 	public AEBaseInvTile() {
-		addNewHandler( new AETileEventHandler( EnumSet.of( TileEventType.WORLD_NBT ) ) {
+		addNewHandler( new AETileEventHandler( TileEventType.WORLD_NBT ) {
 
 			@Override
 			public void readFromNBT(net.minecraft.nbt.NBTTagCompound data)
diff --git a/tile/events/AETileEventHandler.java b/tile/events/AETileEventHandler.java
index cd59d74fd..83f29365a 100644
--- a/tile/events/AETileEventHandler.java
+++ b/tile/events/AETileEventHandler.java
@@ -14,8 +14,10 @@ public abstract class AETileEventHandler
 
 	final EnumSet<TileEventType> supportedEvents;
 
-	public AETileEventHandler(EnumSet<TileEventType> events) {
-		supportedEvents = events;
+	public AETileEventHandler(TileEventType... events) {
+		supportedEvents = EnumSet.noneOf( TileEventType.class );
+		for (TileEventType t : events)
+			supportedEvents.add( t );
 	}
 
 	public EnumSet<TileEventType> getSubscribedEvents()
diff --git a/tile/grindstone/TileCrank.java b/tile/grindstone/TileCrank.java
index 0db0118c9..82b2a9a3c 100644
--- a/tile/grindstone/TileCrank.java
+++ b/tile/grindstone/TileCrank.java
@@ -1,7 +1,6 @@
 package appeng.tile.grindstone;
 
 import java.util.Arrays;
-import java.util.EnumSet;
 import java.util.List;
 
 import net.minecraft.entity.Entity;
@@ -29,7 +28,7 @@ public class TileCrank extends AEBaseTile implements ICustomCollision
 	public int rotation = 0;
 
 	public TileCrank() {
-		addNewHandler( new AETileEventHandler( EnumSet.of( TileEventType.NETWORK, TileEventType.TICK ) ) {
+		addNewHandler( new AETileEventHandler( TileEventType.NETWORK, TileEventType.TICK ) {
 
 			@Override
 			public void Tick()
diff --git a/tile/misc/TileCellWorkbench.java b/tile/misc/TileCellWorkbench.java
index d24ba7ed8..9ddc2641e 100644
--- a/tile/misc/TileCellWorkbench.java
+++ b/tile/misc/TileCellWorkbench.java
@@ -1,7 +1,5 @@
 package appeng.tile.misc;
 
-import java.util.EnumSet;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -72,7 +70,7 @@ public class TileCellWorkbench extends AEBaseTile implements IUpgradeableHost, I
 	{
 
 		public TileCellWorkbenchHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override
diff --git a/tile/misc/TileCharger.java b/tile/misc/TileCharger.java
index e8ae36488..f90fb8fa2 100644
--- a/tile/misc/TileCharger.java
+++ b/tile/misc/TileCharger.java
@@ -17,6 +17,7 @@ import appeng.api.config.PowerMultiplier;
 import appeng.api.config.PowerUnits;
 import appeng.api.implementations.items.IAEItemPowerStorage;
 import appeng.api.implementations.tiles.ICrankable;
+import appeng.api.networking.GridFlags;
 import appeng.api.storage.data.IAEItemStack;
 import appeng.api.util.AECableType;
 import appeng.me.GridAccessException;
@@ -50,7 +51,7 @@ public class TileCharger extends AENetworkPowerTile implements ICrankable
 	{
 
 		public TileChargerHandler() {
-			super( EnumSet.of( TileEventType.TICK, TileEventType.NETWORK ) );
+			super( TileEventType.TICK, TileEventType.NETWORK );
 		}
 
 		@Override
@@ -141,6 +142,7 @@ public class TileCharger extends AENetworkPowerTile implements ICrankable
 
 	public TileCharger() {
 		gridProxy.setValidSides( EnumSet.noneOf( ForgeDirection.class ) );
+		gridProxy.setFlags( GridFlags.CANNOT_CARRY );
 		internalMaxPower = 1500;
 		gridProxy.setIdlePowerUsage( 0 );
 		addNewHandler( new TileChargerHandler() );
diff --git a/tile/misc/TileCondenser.java b/tile/misc/TileCondenser.java
index e963b39ed..b461f5af3 100644
--- a/tile/misc/TileCondenser.java
+++ b/tile/misc/TileCondenser.java
@@ -1,7 +1,5 @@
 package appeng.tile.misc;
 
-import java.util.EnumSet;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -40,7 +38,7 @@ public class TileCondenser extends AEBaseInvTile implements IAEAppEngInventory,
 	{
 
 		public TileCondenserHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override
diff --git a/tile/misc/TileInscriber.java b/tile/misc/TileInscriber.java
index 5e744439b..4dc073b49 100644
--- a/tile/misc/TileInscriber.java
+++ b/tile/misc/TileInscriber.java
@@ -33,7 +33,7 @@ public class TileInscriber extends AENetworkPowerTile
 	{
 
 		public TileInscriberHandler() {
-			super( EnumSet.of( TileEventType.TICK, TileEventType.NETWORK ) );
+			super( TileEventType.TICK, TileEventType.NETWORK );
 		}
 
 		@Override
diff --git a/tile/misc/TileInterface.java b/tile/misc/TileInterface.java
index bf16fbe57..2f2ae37cd 100644
--- a/tile/misc/TileInterface.java
+++ b/tile/misc/TileInterface.java
@@ -1,7 +1,5 @@
 package appeng.tile.misc;
 
-import java.util.EnumSet;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -45,7 +43,7 @@ public class TileInterface extends AENetworkInvTile implements IGridTickable, IS
 	{
 
 		public TileInterfaceHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override
diff --git a/tile/misc/TileVibrationChamber.java b/tile/misc/TileVibrationChamber.java
index 9efebcfbc..377fb5fa3 100644
--- a/tile/misc/TileVibrationChamber.java
+++ b/tile/misc/TileVibrationChamber.java
@@ -3,7 +3,6 @@ package appeng.tile.misc;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
-import java.util.EnumSet;
 
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
@@ -11,6 +10,7 @@ import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.tileentity.TileEntityFurnace;
 import net.minecraftforge.common.ForgeDirection;
 import appeng.api.config.Actionable;
+import appeng.api.networking.GridFlags;
 import appeng.api.networking.IGridNode;
 import appeng.api.networking.energy.IEnergyGrid;
 import appeng.api.networking.ticking.IGridTickable;
@@ -50,7 +50,7 @@ public class TileVibrationChamber extends AENetworkInvTile implements IGridTicka
 	{
 
 		public TileVibrationChamberHandler() {
-			super( EnumSet.of( TileEventType.NETWORK, TileEventType.WORLD_NBT ) );
+			super( TileEventType.NETWORK, TileEventType.WORLD_NBT );
 		}
 
 		@Override
@@ -87,6 +87,7 @@ public class TileVibrationChamber extends AENetworkInvTile implements IGridTicka
 
 	public TileVibrationChamber() {
 		gridProxy.setIdlePowerUsage( 0 );
+		gridProxy.setFlags( GridFlags.CANNOT_CARRY );
 		addNewHandler( new TileVibrationChamberHandler() );
 	}
 
diff --git a/tile/networking/TileCableBus.java b/tile/networking/TileCableBus.java
index 715eb384a..24105730d 100644
--- a/tile/networking/TileCableBus.java
+++ b/tile/networking/TileCableBus.java
@@ -42,7 +42,7 @@ public class TileCableBus extends AEBaseTile implements AEMultiTile, ICustomColl
 	{
 
 		public CableBusHandler() {
-			super( EnumSet.of( TileEventType.NETWORK, TileEventType.WORLD_NBT ) );
+			super( TileEventType.NETWORK, TileEventType.WORLD_NBT );
 		}
 
 		@Override
diff --git a/tile/networking/TileEnergyAcceptor.java b/tile/networking/TileEnergyAcceptor.java
index 17007af79..1684cc4ae 100644
--- a/tile/networking/TileEnergyAcceptor.java
+++ b/tile/networking/TileEnergyAcceptor.java
@@ -1,7 +1,5 @@
 package appeng.tile.networking;
 
-import java.util.EnumSet;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraftforge.common.ForgeDirection;
@@ -32,7 +30,7 @@ public class TileEnergyAcceptor extends AENetworkPowerTile
 	{
 
 		public TilePowerRelayHandler() {
-			super( EnumSet.of( TileEventType.TICK ) );
+			super( TileEventType.TICK );
 		}
 
 		@Override
@@ -44,10 +42,11 @@ public class TileEnergyAcceptor extends AENetworkPowerTile
 				{
 					IEnergyGrid eg = gridProxy.getEnergy();
 					double powerRequested = internalCurrentPower - eg.injectPower( internalCurrentPower, Actionable.SIMULATE );
-					
+
 					if ( powerRequested > 0 )
 					{
-						internalCurrentPower += eg.injectPower( extractAEPower( powerRequested, Actionable.MODULATE, PowerMultiplier.ONE ), Actionable.MODULATE );
+						internalCurrentPower += eg
+								.injectPower( extractAEPower( powerRequested, Actionable.MODULATE, PowerMultiplier.ONE ), Actionable.MODULATE );
 					}
 				}
 				catch (GridAccessException e)
diff --git a/tile/networking/TileEnergyCell.java b/tile/networking/TileEnergyCell.java
index c0aff4a97..2b349b7d6 100644
--- a/tile/networking/TileEnergyCell.java
+++ b/tile/networking/TileEnergyCell.java
@@ -1,12 +1,11 @@
 package appeng.tile.networking;
 
-import java.util.EnumSet;
-
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraftforge.common.ForgeDirection;
 import appeng.api.config.AccessRestriction;
 import appeng.api.config.Actionable;
 import appeng.api.config.PowerMultiplier;
+import appeng.api.networking.GridFlags;
 import appeng.api.networking.energy.IAEPowerStorage;
 import appeng.api.networking.events.MENetworkPowerStorage;
 import appeng.api.networking.events.MENetworkPowerStorage.PowerEventType;
@@ -51,7 +50,7 @@ public class TileEnergyCell extends AENetworkTile implements IAEPowerStorage
 	{
 
 		public TileEnergyCellHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override
@@ -70,6 +69,7 @@ public class TileEnergyCell extends AENetworkTile implements IAEPowerStorage
 
 	public TileEnergyCell() {
 		gridProxy.setIdlePowerUsage( 0 );
+		gridProxy.setFlags( GridFlags.CANNOT_CARRY );
 		addNewHandler( new TileEnergyCellHandler() );
 	}
 
diff --git a/tile/networking/TileWireless.java b/tile/networking/TileWireless.java
index 69014af1b..4161dd987 100644
--- a/tile/networking/TileWireless.java
+++ b/tile/networking/TileWireless.java
@@ -3,7 +3,6 @@ package appeng.tile.networking;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
-import java.util.EnumSet;
 
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
@@ -54,7 +53,7 @@ public class TileWireless extends AENetworkInvTile
 	{
 
 		public TileWirelessHandler() {
-			super( EnumSet.of( TileEventType.NETWORK ) );
+			super( TileEventType.NETWORK );
 		}
 
 		@Override
diff --git a/tile/powersink/AERootPoweredTile.java b/tile/powersink/AERootPoweredTile.java
index 8e5458cb6..d26505f74 100644
--- a/tile/powersink/AERootPoweredTile.java
+++ b/tile/powersink/AERootPoweredTile.java
@@ -44,7 +44,7 @@ public abstract class AERootPoweredTile extends AEBaseInvTile implements IAEPowe
 	{
 
 		public AEPoweredRootHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override
diff --git a/tile/powersink/BuildCraft.java b/tile/powersink/BuildCraft.java
index d72161310..0da29e02d 100644
--- a/tile/powersink/BuildCraft.java
+++ b/tile/powersink/BuildCraft.java
@@ -1,7 +1,5 @@
 package appeng.tile.powersink;
 
-import java.util.EnumSet;
-
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.world.World;
 import net.minecraftforge.common.ForgeDirection;
@@ -28,7 +26,7 @@ public abstract class BuildCraft extends AERootPoweredTile implements IPowerRece
 		final protected PowerHandler bcPowerHandler;
 
 		public BCPerdition(IPowerReceptor te) {
-			super( EnumSet.of( TileEventType.TICK, TileEventType.WORLD_NBT ) );
+			super( TileEventType.TICK, TileEventType.WORLD_NBT );
 			bcPowerHandler = new PowerHandler( te, Type.MACHINE );
 		}
 
diff --git a/tile/powersink/RotaryCraft.java b/tile/powersink/RotaryCraft.java
index c98b1d63c..04e4fc772 100644
--- a/tile/powersink/RotaryCraft.java
+++ b/tile/powersink/RotaryCraft.java
@@ -1,7 +1,5 @@
 package appeng.tile.powersink;
 
-import java.util.EnumSet;
-
 import net.minecraftforge.common.ForgeDirection;
 import Reika.RotaryCraft.API.ShaftPowerReceiver;
 import appeng.api.config.PowerUnits;
@@ -23,7 +21,7 @@ public abstract class RotaryCraft extends IC2 implements ShaftPowerReceiver
 	{
 
 		public RotaryCraftHandler() {
-			super( EnumSet.of( TileEventType.TICK ) );
+			super( TileEventType.TICK );
 		}
 
 		@Override
diff --git a/tile/qnb/TileQuantumBridge.java b/tile/qnb/TileQuantumBridge.java
index b55492e6d..2096600e3 100644
--- a/tile/qnb/TileQuantumBridge.java
+++ b/tile/qnb/TileQuantumBridge.java
@@ -52,7 +52,7 @@ public class TileQuantumBridge extends AENetworkInvTile implements IAEMultiBlock
 	{
 
 		public QBridgeHandler() {
-			super( EnumSet.of( TileEventType.NETWORK, TileEventType.TICK ) );
+			super( TileEventType.NETWORK, TileEventType.TICK );
 			gridProxy.setValidSides( EnumSet.noneOf( ForgeDirection.class ) );
 			gridProxy.setFlags( GridFlags.TIER_2_CAPACITY );
 			gridProxy.setIdlePowerUsage( 22 );
diff --git a/tile/spatial/TileSpatialPylon.java b/tile/spatial/TileSpatialPylon.java
index 3f0100566..c839f3741 100644
--- a/tile/spatial/TileSpatialPylon.java
+++ b/tile/spatial/TileSpatialPylon.java
@@ -57,7 +57,7 @@ public class TileSpatialPylon extends AENetworkTile implements IAEMultiBlock
 	{
 
 		public TileSpatialPylonHandler() {
-			super( EnumSet.of( TileEventType.NETWORK ) );
+			super( TileEventType.NETWORK );
 		}
 
 		@Override
diff --git a/tile/storage/TileChest.java b/tile/storage/TileChest.java
index 8b6c35803..d86511818 100644
--- a/tile/storage/TileChest.java
+++ b/tile/storage/TileChest.java
@@ -5,7 +5,6 @@ import java.io.DataOutputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.EnumSet;
 import java.util.List;
 
 import net.minecraft.inventory.IInventory;
@@ -45,6 +44,7 @@ import appeng.api.storage.data.IAEFluidStack;
 import appeng.api.storage.data.IAEItemStack;
 import appeng.api.storage.data.IAEStack;
 import appeng.helpers.AENoHandler;
+import appeng.helpers.IPriorityHost;
 import appeng.me.GridAccessException;
 import appeng.me.storage.MEInventoryHandler;
 import appeng.tile.events.AETileEventHandler;
@@ -55,7 +55,7 @@ import appeng.tile.inventory.InvOperation;
 import appeng.util.Platform;
 import appeng.util.item.AEFluidStack;
 
-public class TileChest extends AENetworkPowerTile implements IMEChest, IFluidHandler, IStorageMonitorable
+public class TileChest extends AENetworkPowerTile implements IMEChest, IFluidHandler, IStorageMonitorable, IPriorityHost
 {
 
 	static final AENoHandler noHandler = new AENoHandler();
@@ -109,7 +109,7 @@ public class TileChest extends AENetworkPowerTile implements IMEChest, IFluidHan
 	{
 
 		public invManger() {
-			super( EnumSet.of( TileEventType.TICK, TileEventType.NETWORK, TileEventType.WORLD_NBT ) );
+			super( TileEventType.TICK, TileEventType.NETWORK, TileEventType.WORLD_NBT );
 		}
 
 		@Override
@@ -664,4 +664,23 @@ public class TileChest extends AENetworkPowerTile implements IMEChest, IFluidHan
 		return null;
 	}
 
+	@Override
+	public void setPriority(int newValue)
+	{
+		priority = newValue;
+
+		icell = null;
+		fcell = null;
+		isCached = false; // recalculate the storage cell.
+
+		try
+		{
+			gridProxy.getGrid().postEvent( new MENetworkCellArrayUpdate() );
+		}
+		catch (GridAccessException e)
+		{
+			// :P
+		}
+	}
+
 }
diff --git a/tile/storage/TileDrive.java b/tile/storage/TileDrive.java
index f1881625d..1e459e04c 100644
--- a/tile/storage/TileDrive.java
+++ b/tile/storage/TileDrive.java
@@ -3,7 +3,6 @@ package appeng.tile.storage;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
-import java.util.EnumSet;
 import java.util.LinkedList;
 import java.util.List;
 
@@ -27,6 +26,7 @@ import appeng.api.storage.StorageChannel;
 import appeng.api.storage.data.IAEItemStack;
 import appeng.api.util.AECableType;
 import appeng.api.util.DimensionalCoord;
+import appeng.helpers.IPriorityHost;
 import appeng.me.GridAccessException;
 import appeng.me.storage.DriveWatcher;
 import appeng.me.storage.MEInventoryHandler;
@@ -37,7 +37,7 @@ import appeng.tile.inventory.AppEngInternalInventory;
 import appeng.tile.inventory.InvOperation;
 import appeng.util.Platform;
 
-public class TileDrive extends AENetworkInvTile implements IChestOrDrive
+public class TileDrive extends AENetworkInvTile implements IChestOrDrive, IPriorityHost
 {
 
 	final int sides[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
@@ -74,7 +74,7 @@ public class TileDrive extends AENetworkInvTile implements IChestOrDrive
 	{
 
 		public invManger() {
-			super( EnumSet.of( TileEventType.WORLD_NBT, TileEventType.NETWORK ) );
+			super( TileEventType.WORLD_NBT, TileEventType.NETWORK );
 		}
 
 		@Override
@@ -316,4 +316,22 @@ public class TileDrive extends AENetworkInvTile implements IChestOrDrive
 		return gridProxy.isActive();
 	}
 
+	@Override
+	public void setPriority(int newValue)
+	{
+		priority = newValue;
+		onInventoryChanged();
+
+		isCached = false; // recalculate the storage cell.
+		updateState();
+
+		try
+		{
+			gridProxy.getGrid().postEvent( new MENetworkCellArrayUpdate() );
+		}
+		catch (GridAccessException e)
+		{
+			// :P
+		}
+	}
 }
diff --git a/tile/storage/TileIOPort.java b/tile/storage/TileIOPort.java
index c0eab0654..5785d4e58 100644
--- a/tile/storage/TileIOPort.java
+++ b/tile/storage/TileIOPort.java
@@ -1,7 +1,5 @@
 package appeng.tile.storage;
 
-import java.util.EnumSet;
-
 import net.minecraft.inventory.IInventory;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
@@ -64,7 +62,7 @@ public class TileIOPort extends AENetworkInvTile implements IUpgradeableHost, IC
 	{
 
 		public TileIOPortHandler() {
-			super( EnumSet.of( TileEventType.WORLD_NBT ) );
+			super( TileEventType.WORLD_NBT );
 		}
 
 		@Override