Review our startup (bitloot)
catone: I would be careful using PayPal.  Another bounty site - microPledge - recently shut down because using PayPal to hold money in Escrow is against their TOS.I wrote about it here: http://www.sitepoint.com/blogs/2008/10/09/open-source-fundin...I'm sure there are a lot of project owners from microPledge looking for a new home, but using PayPal might just lead your down the same path.