A friend sent me a link to GovDeals which lists all types of surplus and confiscated items being sold by various government agencies. There are currently 47 active listings for bicycles. Some auctions are for a single bike while others are for lots as big as 19 bikes. Most are being sold by cities and going cheap. Great hacker bikes.

There are also listings for welding equipment so you might be able to pick up stuff cheap if you live nearby.

Here's the link: http://www.GovDeals.com/index.cfm

Hope someone can get a few cheap bikes here.