damn that sucks, i try to bid on stuff that i can drive to where ever it is in a day. that way when i send the payment (i almost allways go with a postal money order unless they wont let me this will give me thier name, and address as to where they live.) the post office tracks thier money orders, and i can find out exactly where and when it was cashed. being i would know where they lived, i would show up at thier front door with a can O whoop ass ready and the part to give them, demanding a refund and gas money for the damn trip.
also if they cash a postal money order and give you the shaft, IE not send you anything, its now mail fraud and the feds will go after them hehe. yea this way takes longer being the money order has got to be mailed, but damn its effective hehe. ive only once had to threaten a guy who after 2 1/2 months hadent sent me the part i won off ebay. i told him i would be paying him a vist being i know where he lives, if the part wasnt on my door step in 3 days. 2 days later part arrived and there was a emailed apolligy.