Howdy, I'm on the verge of buying an 11" Macbook Air to use (mostly) at school. I have to carry quite a few books at once as my classes are back to back, and I'm wary of allowing the Air to hang out in my backpack. I used to have a Macbook, which handled similar stress well (weight from books, general bag movement, shifting contents, etc), but the Air seems more delicate. I've been searching cases, sleeves, etc. all night, and haven't come up with much as most websites say that their product "protects," but doesn't distinguish between "against scrapes" and "against textbooks." Obviously nothing is foolproof, but if at all possible I'd like to avoid carrying another bag. However, if there are bags/sleeves that just have space for the Air, I'd be interested in those, assuming they have a strap of some sort. Suggestions, thoughts, etc. would be appreciated - and yes, I know that cases and the like "defeat the purpose of the Air" but I'd rather it didn't break, and even with a case it's still lighter than anything other than a (bleh) Netbook. Thanks, and sorry for the verbose post.