There's also EQClassic. It is closed source and will be releasing a database and binaries in the future.
www.eqclassic.org
The project statement for EQClassic is no longer to host a server, but instead it is to create serverside code for emulating the game of EverQuest as it was in 2001.
You may want to keep your eyes peeled on it, as I will be making sure there's going to be a way to customize it if we keep with this plan :p