My suggestion would be forget the sata stuff. You're never going to go at the top rated speed anyway. My suggestion would be to get PCI exspansion cards. I have one in my system now that gives me room for 4 more HD's added to the 3 plus the optical drive off the mother board. Currently I'm running the optical drive a IDE channel 2 master while the Primary is running the C: drive. The other two drives are masters on the PCI card. Works great and it's faster than any firewire/usb setup. The card will run you about 35 US dollars at www.microcenter.com
. It's a Belkin running the promise system on the card. Just a note to add. When I back up my drives to the storage drive, I have to fasten my seatbelt. I can move an entire 80gig drive to the storage drive in under 15 mins. Moving data through the pci channels is faster than any fire/usb setup.