Minecart Mania sign commands are now re-enabled. Please try it out carefully. If you see that the server laggs or other strange stuff is happening, please stop using it and post here what you did, the coordinates etc. so I can go there and test it myself.
Uncovery Minecraft
1.3 will allow mine carts to be dispensed from dispensers. Maybe changes like this will make mine cart mania less and less necessary?
There was a big lag spike at 4:30 Eastern USA time. And some mini quakes around then too.