Campaign Cartographer is a program for drawing pretty maps of countries and stuff. It's commercial, though.
Tablesmith is another program, invaluable for D&D. It basically lets you type "random tables" into it, and will make rolls on it. It can come up with some very impressive results (create a random D&D character of level X, with X percentage chance of multiclassing, and choosing appropriate feats. etc.)
One of the tables it has is a random dungeon generator. Nothing that exciting, just a grid-based dungeon, but if that's all you want, then it can do it.
Myself, I'd fall back on Photoshop, make myself a library of map icons and pattern brushes, and paint up a map. But I'm a control freak with things like this, and it takes time to get set up and experiment to get an effect you like.
Belatedly answering,
Rat |