Hi, I currently have an 8600gt (down in my sig) and I want to upgrade to the best new card I can get. I have like 70$ right now and am planning on getting about 130$ during the next month to month and a half. So could anyone recommend a good card for about 150-200$. I have an Asus P5N-D 750i motherboard (has 2 PCIe 2.0 slots for 16x 16x SLI) and the rest is down in my sig. I am planning on playing games like the Half-Life 2 series, TF2, COD 4, Company of Heroes, Guild Wars, and other games of the sort. I'm not planning on going SLI, but if you recommend a card around 150$ then I might SLI later if someone can give me a good reason to do it. So any advice would be helpful.