Need some advice. Looking for the best video card for my old Dell computer. It is a 1.86 GHz Core 2 Duo with a 650 watt ps and 4 GB of ram. I currently have a HD 5450 and this card just really does not seem that good. I am stuck with this computer for a while, and am on a budget. I have seen some older cards like the GTX 280, and 3870x2 going for fairly low prices, but not sure if those would a whole lot better than what I have. How about an HD 6000 series? The XPS 410 had I think a Geforce 6800, or something like that, and previous owner said a game like Frontline Fuel of war worked great. With the 5450 it won't even play/load that game at all. I am really pretty new to this stuff so would appreciate any help. Thanks