Hey Guys, I am overdue for a new gaming machine and was hoping for some advice from some you. I would like to build a system that I can o'c to hopefully 3ghz. So far the only part I'm sure of is the PSU...the OCZ 700w gamexstream. I know I need a 2 gig kit of some good ram...OCZ?, Mushkin?, or GSkill? I figure i have to do water to hit those speeds to right? Can I get 3ghz out of a 3800+ dual core? or an opty around that same stock speed? Would it be better to go with the dfi expert or sli-dr? Should i go with a couple x1900xt's or would nvidia be a better choice? Any and all advice is greatly appreciated.