I would echo that if you buy used $1000 can get you a really nice ride. If you're not in a big metro area then selection might be limited.

Keep in mind the Miele from Brown's Sports is has disc brakes and is 11-speed, though I think they skimp on the crankset and brakes, which are not 105's. The Norco is a 9-speed, and the two recommended by Classtime is 8-speed, but both have eyelets for fender and rack mounts.