In other news, I've been looking around the Bukkit Mod section. :3
AutoReplace just might be the plugin that was on DDR's server that we all liked. It restocks the item or block used in the hotbar, once you run out and have a spare stack in your inventory. Apparently, it is discontinued at the moment, seeing that the project will be split into more specific projects. (ie. AutoTool, AutoBlock, AutoItem, AutoFood, etc.) It's worth following once the new projects launch.
GloWool makes it so that wool can glow if it is powered by redstone. :3 The wool won't emit light like torches, but stuff will glow in the dark.
And then there's
ChairCraft that was recommended by Chen earlier. Serves no real purpose, but nifty nonetheless.