This build would be far faster. It's at $507.00, but once you figure in rebates it's much less.Antec Sonata case
It's not flashy but it comes with an actual quality Antec EA500 PSU. Far better than the cheap Ultra.ASUS P5QL Pro P43 MB
Nice board, good features.Intel E8400
Far faster and better frames in most games, over an AMD 9950. Highly overclockable.Sapphire 4830
Very fast little card.OCZ 2x2GB 800Mhz
Practically free after rebate
Really, far faster rig.
Look at the first few sections in my guide, linked in my sig, for more info.