hi im thinking of upgrading my ram atm i have 4 gig 533mhz <2x2gig> my cpu is a phenom 2 965 3.0gig x4 ,mother board is: asrock.com/mb/overview.asp?Model=K10N78 i mainly use the achine for gaming and started playing crysis2 ill also be upgrading my vid card so im not using onboard vid, but my question is: how far should i upgrade my ram and with what 1066? using win 7 ultimate 64 bit. thanks for any advice in advance.