I was searching for the Upgrade DVD on ebay, and could only find people selling HDs with the upgrade on them. While they are significantly cheaper then the DVD upgrade (100 bucks for 40gig and 165 for 60gig). I have two concerns. First, this of course would loose my current music library. And second, I would assume no support, and a void warrenty. So, with that said, anyone out there try this upgarde? Logically it seems pretty simple. The Ebay listing says the speed increases. That would be a plus, but loading all that music back on would be a pain. Any thoughts would be appreciated.