So, I'm going to have to move away from my ancient but delightful Gainward 6800GT Golden Sample pretty soon and I want to make sure I don't move backwards in performance but not spend much more than $100. What should I do? I originally wanted to pick-up a cheaper 8x00 card and then eventually run SLI, but the budget 8's aren't really up to snuff so far. So then a budget 7 series, right? Well, during the period before I go SLI I would really like to have a card that really outperforms my Gainward. Thanks for the help.