Gigabyte GA-MA78GM-US2H-2x2GB DDR2 800 Hyper X - CPU X3 740 - XFX 4850 - Corsair VX 550 w P/S - Western STA 320 G H/D...Has run since 04/09 and been reliable ...but Tech changes..are there cost effective upgrades , I could or should make...M/B seems to limit ram speed......etc any advice welcome...not a heavy,..but average gamer..CoD4,Bio-shock Infinite...etc. Thanks all ...P.S some one has a like unit ! and can advise.