I'm currently selling 3 MSI 6950s, reference model, flashed to 6970. They haven't been used much, maybe a few months of mining at stock clocks in an open air case.
I still have all the boxes/manuals/etc, and they will be included upon request.
These are seriously some of the best mining cards out there - I get 375 MHash with no extra overclocking - bios switch in OC mode.
I've sold a couple things on the board in the past (LED Traffic Lights), but I've been involved in the bitcoin community since 2010.
My current price is 85 BTC each including shipping in the US- payment via bitcoin is strongly preferred. I'll sell them individually but give priority to offers that want to buy all at once.