well i dont want to have 2 spare memory slots thats going to be unusable, so i think i will buy another 4 gig of DDR2 to fill up the 4 memory slots running at 1066 that will give am a total of 8 GIGS of memeory and look for a X6 core AMD + CPU, a increase of 50% CPU power is not that bad, any suggestions on what would be the best model AMD 6 core CPU ?