HEY, I JUST GOT MY W.D. RAPTORS SATA 10,000 R.P.M. DRIVES. I GOT THEM FINALLY TO WORK UNDER R.A.I.D 0 CONFIGURATION AND PUT 16K. IT WAS BLAZING FAST EVEN THOUGH THE O.S. WAS ON SLOWER SEAGATE DRIVE (PROGRAMS WERE ON RAPTORS). NOW I FINALLY GOT THE DRIVERS TO WORK ON O.S. INSTALLATION AND AND NOW THE SYSTEM SEEMS MUCH MUCH SLOWER, JUST LIKE 7,200 R.P.M. DRIVES. FOR THE CLUSTER SIZE. THERE'S THAT CHOICE, 64K. AND 128K. I WAS WONDERING WHICH IS A BETTER CHOICE FOR GAMES. THANKS.