people were all over this when the 5 gig came out bc toshiba had a 10 gig and the 20 gig, but the prices were the same as th ipod for the drive alone, so i don't think anyone did it. the hard part is formating the HD and getting the software on it, although some of ot might be on the 32mb of ram dunno. i'd just say if you got the cash get the 20 gig and you'll get the apple care too.