For those of you considering the "Under $400" dSLR/bellows route, here's what looks to me like a pretty good deal on the recommended camera, from
ebay. I haven't dealt with the seller, but their Feedback is extensive and I'd do the deal without hesitation myself. And $135 plus $10 shipping is as cheap as you're going to get:
http://www.ebay.com/itm/Canon-EOS-R...em258dad9caf