Video Fitness is a great idea. Some people do temporary trades, so you won't have to say goodbye to your Jari Love dvds forever. If you have Ripped dvds, I think you'd have a pretty good chance of finding someone to trade with. You do have to create a membership account (totally free, no spam) before you can view the exchange listings though.
Also, I don't know if you've ever ordered through Collage before, but they offer a 30 day money back guarantee even for opened and viewed dvds. I've never tried BC/ME but I'm dying too. From what I hear I think it'd be a sure bet and a great one to start with.