You've picked the worst time to build a top of the range gaming rig lol. At this moment in time, I could not build a complete system, because of the situation the graphics card market is in. I simply cannot justify the £400 plus for the GTX280's performance, and with the 4870 not far away, I see no other option for the very best graphics card. If I were in your position, I would wait for the 4870's.