I have a Gateway DX4200-09 7B3P091G, with a 2.40 gigahertz AMD Phenom 9750 Quad-Core processor on a Gateway RS780 motherboard. I am looking for the best i can get under 200 bucks. I want to run HDMI to my 46" LCD. I do want to play games on it, most are slow at 1080P on my integrated video card. HD 3200 btw. I know im going to have to upgrade my PSU, id say at least 600. So now what?