the games of the future(and some now) require 2 gigs of ram, especially if u want high resolutions all maxed out. if u arent gonna overclock just get 2 gigs of value ram and make sure u dont get 4*512.
the performance difference in ram timings is not really noticable at all and is just so benchmark gurus can get better scores.
-C2Q Q6700 @ 3.4ghz(cooled by PetraTech's Elite Water Cooling Kit)
-DFI Lanparty DK P35-T2RS
-4*1024 sticks of G.Skill Ram 4-4-4-12
-eVGA 8800GTX 630/2000
-80 gig 7200rpm SATA HDD
-320 gig 7200rpm SATA HDD
-Sony DVD/CD burner
-Antec True Power 550 watt PSU