ok I'll start off by listing my hardware(all of this minus the WD HDs are new, as of a few days):
mobo: Gigabyte GA-M750SLI-DS4
CPU:AMD Athlon 64 X2 6000+ Windsor
HDs:250gb Seagate, 70gb WD raptor, 160gb WD caviar
GPU:EVGA 9800GTX
PSU: Enermax Pro82+ 625W
Memory: 2x2gb G.skill DDR1066...