Just a note on your Intel chipset migration... I've moved systems from ICH8R to ICH9R (and 10R) controllers without needing to run a Windows Repair installation. All you need to do is ensure that you're running the most up to date chipset drivers BEFORE the migration.
Windows will start up, install the new chipset drivers, and tell you it needs to reboot to complete the driver installation. Reboot again, and you're ready to go.
I've done this with RAID0 and RAID1 arrays, moving from ASUS P5B Deluxe (ICH8R) boards to all of the following: ASUS Maximus Formula (ICH9R), P5K Premium (ICH9R), and P5Q Pro (ICH10R).