I placed a HIS H577FK1GD ATI HD 5770 GPU card on BiddingPond.com. This card more than paid for itself; I am only selling it because I am upgrading. This card generates 190 Mhash/s at a core clock of 950 MHz, and you can expect it to find a block (50 BTC) approximately every two weeks with a difficulty of 50,000.
This is a one-week auction, and I am opening the bidding at 50 BTC.
Item link:
http://www.biddingpond.com/item.php?id=319Thanks for looking.