Apple is replacing my just replaced Santa Rosa BlackBook with a Penryn MBP! Questions: 1. I need protection! I like the basic-sleeve interface, something I can cover my MBP with, throw it in my school backpack with all my textbooks, and not worry about it getting crushed/dented. 2. Do I need wristpad skins to protect it from any permanent smudges over use? Or does aluminum not do that? Prices do matter! I am on a budget. Thanks!