Hi guys. I currently have a spphire 4830 512mb and a kuma x2 7750 oc'ed to 3.1. Im in the market for a 200 dollar upgrade and am wondering what the best path would be. Should I crossfire the 4830 and upgrade to an athlon II x4, or drop all the cash on a new generation vid card, or phenom quad. Thanks ahead of time for the input.