Thinking of getting a pair a 2x1gb so I can shoot for 8.5x500fsb with mem 5-5-5-18, PL9 and 1200mhz. Right now I'm running 2x2gb Dominators 8x525fsb with mem 5-5-5-15, PL9 and 1050mhz. Is it worth the $48 bucks or will there not be much difference in Everest scores and system performance?