Here is the solution to the RAID problem:
Problem: You install VISTA onto your boot drive but do not install any RAID drivers at that time. Then you decide to install a RAID array. The moment you switch the controllers to RAID in the bios, the system will no longer boot because your VISTA installation does not have the RAID drivers installed. Basically, a chicken and the egg / Catch-22 situation. Trying to repair the installation using the VISTA DVD and patching in the RAID drivers does not work. The trick of installing drivers by right clicking on the *.inf file does not work in VISTA like it does in XP. VISTA will tell you the system does not meet the requirements for the driver and not install it, while XP just does it...
As long as the boot drive was connected to the SATA ports on the MB, there was no way to make it boot. So, I thought I would try taking out the boot drive and finding another way to make the system boot from it. I was going to try mounting it in a SATA to USB enclosure, but then I was not sure if it would boot properly. So, I settled on adding a SATA PCI-E card, the BYTECC BT-PESAPA available from NEWEGG
http://www.newegg.com/Product/Produc...82E16815283005
Install the card. Remove all the SATA devices from the MB except your boot drive. Start the system. Install the drivers for the card. Verify its operation in the device manager. Shutdown.
Disconnect the boot drive from the MB and attach it to the card. Go into the bios and set the controller to RAID. Start the system. The system should now start and allow you install the proper RAID drivers. Shut it down.
Connect the drives you wish to make a RAID array with to the MB. DO NOT connect any other devices to the MB (like your DVD drive). Start it up and create the RAID array in bios. When the system finishes booting, check to see if the RAID array shows up in the device manager and on the management console. Shutdown.
Connect up your DVD drive to the MB. Start, check, shutdown.
Finally, disconnect the boot drive from the card (if you want to that is) and attach it to the MB.
Success! $26 is definitely worth not having to re-install Vista Ultimate 64!
One last note - if you choose to format a RAID 5 array using 4 one terabyte HDs, it will take ~42 hours at the rate of writing 1.1 - 1.2 gigbytes per minute.