http://www.esnipe.com/
It bids on your item of choice at the last second to battle people who camp out and poach items. If you realistically want these guitars and would buy them if you found them in a store for $200 or whatever, just put it in to bid $200 with 5 seconds remaining or something. If you win, you win. If you don't, you don't. You pay nothing if you don't win.