Just listed two more unused 5830s for 15BTC a piece.

see my listings here:
https://bitmit.net/en/user/stickyBits/

older listing currently at 9 bids  :
https://bitmit.net/en/trade/i/251-unused-unopened-radeon-hd-5830-sapphire-brand-avg-284mhash-s