Sorry to be anal but I'm probably going to be working on this tonight. If the Anytime Upgrade is successful, do we still start at Step 1 of your original post or Step 5?
Also as an aside, if the Anytime Upgrade fails as dhewitt59 found, is it possible to install from scratch with an external DVD drive or do you have to go the USB route?
If anytime upgrade is successful, then all your original drivers will still work...no need to start from step 1, unless you want to update to the latest drivers.
If anytime upgrade is not successful, then you can use the DVD drive to install Windows. You'll have to install most drivers manually though. My suggestion is to download all the latest drivers and save them to disc or on a separate partition on the hard drive before starting the Windows installation. By the way, you can skip entering your product key during installation as you'll get 30 days to activate Windows.