Unfortunately, I bought a gateway tablet PC before I discovered how amazing macs are (i also have a 20" iMac G5). But, before I go out and drop a couple thousand on a mac book (which i'll probably wind up doing anyway), just wanted to check on the durability of the powerbook/macbook case. My gateway has a silver outside and despite the fact that its always either in my backpack (touching nothing more abrasive than a text book) or a laptop case, it has become incredibly scratched up. I have no idea how it happened, it's just scratched terribly! I was just wondering how the exterior of the power/mac books hold up. Is a sleeve really necessary if you're putting it in a back pack? Does the exterior scratch easily? I can understand it scratching if its dropped, but after a year of owning it and taking decent care of it, does it still look as it did when you bought it? Thanks for the help!