XBOX360 HD-DVD Drive for the unwashed masses

Micosoft recently let it be known that you will be able to use your usb HDDVD drive that you buy for you 360 with your desktop.

http://www.tgdaily.com/2006/10/17/xbox_hddvd/

They aren't providing a driver as of yet, I'd imagine it will be supported by Vista though.
I'll cover the theoretical HDCP workaround later.