Hey, I'm not all that computer-savy and just joined. I was hoping someone here could offer me some advice/explanations? I want to game on my PC with some pretty high settings. I want to run games like Guild Wars 2, Tera, Tomb Raider, Dead Space 3, Crysis 1 and 2 on max settings. Specs: AMD FX-6120 3.5GHz 10GB DDR3 1TB HDD AMD Radeon HD 7450 300 Watt Dimensions: Height 16."' Width 16.2" Depth 6.9" Additional Information: http://www.tigerdirect.com/applicat...mc=Email-_-WebletMain-_-WEBLET03ORDER-_-Deals Pictures: http://I.imgur.com/OoR42CH.jpg?1 http://I.imgur.com/vIn9rND.jpg I'm not really sure whether a graphics card I can buy will fit into the computer. I'm also totally lost with this PCI business, since all the graphics cards on newegg seem to be PCI 3 or something and it doesnt appear that this computer has that, and I'm not sure if that makes a difference. Lastly, from what I've read, my PSU may pose a problem, but I don't know how I'm supposed to find out. If someone could recommend me any graphics cards with a price of 300 (though preferably less), that'd be great. Or if they could just elaborate on any of the questions I posed above. Thanks in advance.