Thanks for the post, Morr. I currently have these locations: Vault 13 (circa FO1), Shady Sands, Vault 15 (circa FO1) and a partially completed Hub. I keep meaning to upload the actual map files for OTHERS to make campaigns out of. I dig making the maps and while I had planned a sort of "FO1/2 in Tactics" (imagine FO ala Rosencrantz and Guildenstern -- you'd be a character always on the peripheral of the original Vault Dweller's and Chosen One's adventure) I don't have the time nor patience to do anything beyond mapping. I'd emailed with the Dark Fall dude some, but then he fell off the face of the earth.
All of this, of course, in preparation for the 50/50 possibility that Bethseda's FO3 is going to be on par with that horrible PS2 console port Brotherhood of Steel.
Damn! Completely forgot about Junktown! That was a lot of fun. The temptation, of course, is to add a whole lot of crap that wasn't in the original. With the Khans raider camp, I added a basement dungeon, because it made some sense. I figured after you dispatched everyone top-side, you could venture downward to discover what untimely demise might've awaited Tandi and a deranged "boss" raider.
Vault 13, I actually included an outside to the cave entrance, with cars strewn about, supply trucks that never got unloaded and a deteriorated road leading to the mouth of the cave. There's even what looks to be the scan remains of an official government office, with a flag still flapping on a pole in front.