I want to build a computer that can run COD Ghosts on ultra setting, high res. and will be able to play bf3 at lowest on medium settings. But I have a low budget of around 500. I already have a hard drive, OS, and ram. I was thinking about getting the amd fx-6300 with a and Radeon 7890. Any builds that around the $500 budget and are better for gaming would be really helpful. THANK YOU!!!