with an i7 you dont need to overclock mate, as its fast enough as it is, i have a i7 985 and it flys mate, but if you want ultimate gaming computer you are best off going 4x 285 gtx sli, but you will have to go a better power supply than 850, i have a 1200 watt gigabyte and it runs 2x 295 gtx cards, and they are the most power thirsty cards out, ram wise i would go higher than 1600, i would go pref 2100
Vs eco 3.8, extractors, 2.75" exhaust, roller rockers, cammed, bored out 20, t5 manual, rolling on king springs all way round with monroe gt shocks all way round, every door has a ding but looks can be very deceaving