Hey all! I have been talking to several of you guys as to building my own computer in the past. As it turns out, Best Buy had a great deal on a really good system for their Black Friday sale. It is an AMD quad core @ 2.6, 8gb ram, 1TB hd@7200...the only problem is that the onboard video card is not the best...(it's a NVIDIA GeForce 9100 integrated) I was wondering if any of you out there have any suggestions as to what would go nicely in this system to bring it to top performance. I am aware that I will probably need a new Power Supply too, as this one is only a 300W...Can anyone help?