I currently have an Asus P4P800 mobo, 2.4c ghz, and 512mb (one stick) of kingston pc2700 ddr ram. I started hearing about dual channel ddr ram and how you need two sticks of ram to enable it. Would it be better to trade in my current ram for 2 sticks of 256mb of ddr to enable dual channel? Would there be a big difference? Or what other ram combinations should I go for? I was thinking about getting pc3200, but I'm not sure if that's worth it either.