GPBD, I'm happy to talk with you via PM about great neighborhoods/hotels to stay in, and attractions to see - there are tons to choose from in central Denver. Capitol Hill (where GDC is) isn't a bad place, but there are fewer hotels to choose from. The neighborhood is right next to downtown though, and there are a lot of hotel choices downtown, as well as the places in Cherry Creek and on Colorado Blvd that knute974 recommends. Send me a PM and I'm happy to give you as much info as you like.