I smell a scam.
Seriously someone needs to do a middles network for BTC's. Ie a group of people that act as mediators and recieves both ends of the trade to make sure it all is right and kosher before signing the deal and sending each part their "price" so to speak. It would be risky true, since we would have to trust someone, but at the same time, anyone who would not want to use a middle as a part of the trade would immiditately raise a red flag.
See:
https://bitcointalk.org/index.php?topic=133931.0