i picked up those case for 2 bucks from a local radioshack here in boston. I did not believe the tag the first time I was there, but since it was still there I asked for the price, and yup, 2 bucks it is. It's made for the 2nd Gen nano, but the extra tightness helps keep those caps in place better anyways

and yes, that's my textbook for organic chemsitry, i'm in a 6-year pharmacy program