Hi, I have a single radeon 6950 2gb... I used to have 2x in CF but I sold one... I was goin to buy another radeon 6950 to do crossfire again... But I'm thinking I should sell my remaining radeon 6950 2gb and get myself the 7970 or 7950... or a NVIDIA card... Basically, I'll get 230$ if I sell my remaning 2gb 6950 card... and it would cost me just a little more than that to buy another 6950... So I'm thinking I should sell the 6950 and get an upgrade... What do you guys think, what's the best 400 - 550$ card's worth I could get? 6950 CF or other solution ???