Mapping on OS X
Someone in the NaNoWriMo tech forum asked about freeware for making a town in OS X. Having a thousand words yet to write tonight, of course I went googling.
As I suspected, there are still no good free gaming-style mapping programs for OS X, but I did find the shareware RPGMapMaker and a demo of Dundjinni. But Maldin recommends that you do it by hand instead.
You can also do it online with Benny’s Dungeon Map Maker or the Stonesword Dungeon Maker and World Maker. If you want the map made for you, Gozzy’s has great random map generators.