Nashbar has a bunch of frames on cheap right now including my bike's frame, the Schwinn World DBX disk. $75 for a bare frame. I might pick one up as a backup I like this for commuting so much. The have two different years of it.

http://www.nashbar.com/bikes/Product...84_-1_200545__

http://www.nashbar.com/bikes/Product...96_-1_200545__