If a person were to compare the new iPods with the 30 Gig iPod that was just phased out, would one find any differences other than the size of the HD? _Do the new iPods come with anything new or different? I was looking into getting one of the new 20 Gig iPods and found that I could get a pretty sweet deal on a 30 Gig model, since it is phased out. I'm just wondering if I would miss out on anything by getting the 30 and not the newer 20 Gig iPod. Appreciate your help.