Hi guys.i have had my 8800 ultra for just over two and a half years now and i am wanting to upgrade but cannot afford one of the top end 5970 or 295 cards from ATI and Nvidia.what would be a good card for a reasonable price where i would still see a difference in upgrading,but at the same time would not break the bank.i have around 200 GBP to spend which is approx 300 dollars.