Up in my neighborhood in Bucktown on the Northside of Chicago, this great organization, ReBuilding Exchange, has an antique and flea market on Sunday. They salvage housing materials from various buildings and sell them at pretty low prices. I got my husband a drafting table for $20 at the last flea market. They also periodically have DIY classes on how to do home renovations. Check out the information on their Facebook page: http://www.facebook.com/rebuildingexchange.