how long (after release) will it be before we start to see refurbished intel iBooks? I would like to get one of those if they are reasonably priced. But I don't think I'll be able to get a refurb one by late May (graduation - this is a graduation gift btw). If I can't get a refurb intel iBook, will i be fine with a G4? I'd like for this to last all 4 years of college but I may upgrade in a couple of years.