This is my planned build http://pcpartpicker.com/p/Vz67sY. I have bought everything except mobo ram and os. I am a little short on cash and I was wondering what would happen if I ran on 4 gb of gskill and then bought another 4 gig stick later? I was also thinking about buying the team Vulcan ram that goes on shell shocker in a bit if the price is right. What do you guys think? Thanks