I purchased my macbook less than a week ago and I wish I had been warned about how easy it is to dent the unibody. I stupidly left it by the bed and the cat dropped a glass on it. It is my fault, but now I have 2 large dents on the top. Fortunately, the damage is only cosmetic. If you are purchasing a new macbook, I highly recommend getting one of those plastic hard-shell cases as well. A macbook is a beautiful object! Best wishes on keeping it that way! (It hurts to even look at my poor computer!). I added this picture to show my lame attempt at covering the dents, a couple of stickers. Each dent completely fills the sticker. The computer has a 13 inch screen...so you can get an idea of scale.