I know that this is not the solution to your dilemma, but search the manufacturer's website to find a compatible HDD list, though I don't think this is your problem. After verifying your hard drive, try one disk (freshly formatted 1), just to see if it is recognized; then work your way up by reformatting the other HDD. Good luck~Mav.
If you feel like beating the kids, try internet gaming
ASUS P5E3 Deluxe-WiFi, Intel E6850, 4Gb OCZ Reaper DDR3 (2x2Gb), 2 ATI Radeon HD 3870s in XFire (passive chilled), 750w-HP Zalman, 74Gb WD Raptor, 250Gb Hitachi Deskstar, 750Gb Samsung Spinpoint, Asus Silent Square, packed in a purdy black box (Antec 900); Running XP Pro x64.