thats a great build, but its overpriced. I'd get G.skill ram, maybe get a 300GB WD Caviar, with a 74GB WD Raptor. and get an Opteron 165 instead, it can go higher than 2.7GHz when overclocked. usually people get it to 2.3-4 GHz, if this is ur first time overclocking, get a PC4000 DDR500 G.SKill ram, it makes it easier to overclock CPU without having to worry about the ram for a while.