I'm thinking of purchasing a hp compaq 6005 with a amd phenom 2 x4 b95 processor. I'm not sure on the graphics card yet. The actual pc has a VGA port and a displayport.If I chose a gpu with hdmi support, is that all I need to hook up this rig to my hdtv? Also could there be any flaws with my setup? (Im not going for a very high power gpu, midrange maybe).