1. keep checking the thrift stores. i've noticed that the burbs have more and better bikes typically. a friend found a cineli road bike with full campy everything for $16 at a goodwill just out of town. i had to punch him in the face for that.

2. craigslist.org, if you're reasonably close to dc.

3. e-bay. this has been disapointing since fixed gear got all hip (and summer always drives bike prics up) but you can sometimes get a good deal on a bike with missing wheels.

4. keep checking the yard sales.