Hi, I haven't been in the gaming scene for a while. I am currently running a AMD 5000+ with a ATI HD 3850, Antec 550w and 2gb Ram with Vista. I want to upgrade my system to todays gaming, and don't know what is the best bang for the buck. I would like to reuse some of my stuff, mainly want to upgrade my CPU and Mobo and then go from there to satisfy my gaming needs. I would like some suggestions on a setup that will go $200-$400. Game I'm looking at is Dirt3. I am debating on either i5 or 960T.