Did you or are you going to use Win 7 Easy Transfer to copy/restore files on your new install? I have the release candidate of 7 still installed and waiting on some funds to purchase another HDD then am looking at installing one of my Win 7 upgrade licenses on the new drive, then using easy transfer to shoot over the data. I've only ran the client end of it once and it looked like it was going to be pretty smart about figuring out what should be backed up / transferred.... Anyways if you (or anyone else) has experience with Easy Transfer let me know how it goes so I know whether it's trustworthy.
Enjoy Win7