You could check out buying a bike on craigslist --> http://orlando.craigslist.org/bik/

A BF member who came to Atlanta last fall (and I had the pleasure of riding with) did this. He bought a bike on the Atlanta craigslist and brought the necessary tools to do any minor repairs/adjustments to the bike. I'm not sure if he took the bike home or if he posted it on craigslist again and sold it the day he left town.