Hey all, So I'm going in to college in 2 weeks and am looking at my options for laptops. I currently have a Powerbook G4 12in, but I know I want something a little newer/faster for college (plus the PB is on its last legs). One thing I hated about my powerbook is the pitting on the palm rests (there are little black holes/dots ALL over) as well as how easy it would bend, especially at the edges. Based off the current rumors, the Macbook is going to go to a new aluminum casing (which disappoints me based off my experience with my PBG4). However, it seems that the case will be more similar to the Macbook Air's casing. So, my question is, how does the Air handle pitting and denting? Is it any more/less durable than the plastic macbooks? Would you recommend buying my Macbook now so I can have the plastic casing, or waiting until the new version comes out (hopefully in sept.) and hoping the case won't have the durability issues of the powerbooks? Thanks!