I am rebuilding my rig tonight and have decided to load vista instead of xp. I have 2 different sets of memory. I have 2x1gb 4-4-4-12 sticks, and 4 5-5-5-15 sticks. (2x1gb,2x512mb). The rest of my system consists of a c2 duo e7200(going to oc to at least 3ghz) biostar p43 mobo, and 9600gso video. Will I get better performance from the extra gig of ram? or better performance from the faster ram? Thanks in advance for any suggestions.