Looks like I get to transplant the 160GB IDE Drive from the unused External HD into the machine, and RMA the drive. At least I'll get to add a drive to my gaming box for swap space. Not that it really needs it, running a 10K SATA Drive as it is.
The annoying part will be the roughly 8-12 hours this re-install will take. On the flip side, this windows install is almost a year old and is BADLY in need of a refresh.