Hey guys, I want to update my PC so it can play games like Call of Duty 4 or World at War. My graphics card is really basic though and I need to upgrade it to play the games. The problems is that I don't know a thing about graphics cards and am confused to what I should do. I'm also not sure about how to install the card. Can I do it by myself or should I have someone to come and install it? My PC's Specs are: System: Windows Vista Premium Processor: Intel Core2 Quad CPU Q6600 @ 2.40 GHz Memory: 3.00 GB Hard Drive: 500 GB Graphics Card: Intel G33/G31 Express Chipset Family? (Don't know if I was looking at the right one)