I think the scratching issue is very overrated. I have had my 60 gb iPod with video for over a month, and while the metallic back has plenty of fingerprints on it, the screen has no scratches whatsoever. But then again, I carry mine around in a case, and take good care of my investment.
You can't just throw one of these naked into a bag and not expect it to get scratched. It's no different from a PDA in that respect.