Hello everyone! I'm wondering if it is a worthwhile upgrade switching from an 8800gts 640 to a 4870 512. My current setup is in my sig. I don't care much about crysis, just games like CoD4 and Bioshock etc.... The reason I ask is because I just purchased a Samsung 120hz 40 inch tv (Model: LN40a650) and I'd like to play some games over on it. The 8800gts ran everything fine with max settings minus AA. Would the 4870 deliver similar performance with AA? I hear that AA hardly hinders the performance of these cards at all. I plan on building a new computer within the next 8 months, maybe sooner, but the purchase of the TV has drained my wallet. I can only afford like a 4870. What do you think? Is it worth it? AA is the main reason I'm considering the upgrade. Let me know what you think. Thanks!