I currently own a SR MBP, but if you can believe it, ever since I saw someone using their macbook at the airport, I've never been happy with mine. So, I'm making the switch. Only question is, if I buy the old SR MB, I assume it quick, but when I go to the store, I'm impressed by the quickness of the the new Penryn MB's. Not having given macbooks much of a look through before, I don't know if its quick because of the Penryn chip or because of leopard? (My current MBP has Tiger) What do you guys think? Reason why I say this is, if I buy a refurb macbook, its only $850, and I'll do all the upgrading myself. So, save myself $150-250 or to Penryn? That is the question! Any thoughts? P.S. I've done some searching, but haven't found much feedback on the new macbooks. Seems like there are a fair number of people who didn't even know they were updated?