I thought MUD was just dirt and water? Hehe
Anyways, this sounds pretty cool but I don't know the first thing about coding one. What exactly is the "goal" of the MUD? The theme seems like it's going to be present day but what will everyone be trying to accomplish? Is it going to be something like the Sims or GTA? I think before you even think about using hometowns and transports between them you try to figure out what people will be trying to accomplish in-game (unless I missed that thread in which just point me in the right direction).