I was looking at this and since, my parents are divorced, I want to bring my laptop back and forth (I have my mom - monday, wednesday, friday; dad - tuesday, thursday), so the only way to do this is to bring it to school (private school) and keep it in my locker (with lock on it) until I go home. Do you think that sleeve will be ok? Because I want something that IS REALLY GOING TO PROTECT IT. Like something that has a hard, case, not metal, but HARD so it won't break when i have a lot of books coming home. I like that one because it comes with the screen protector from the keys and it has a little accesory bag. Will that one be good? Is it hard enough? P.S. I'm on a tight budget and that would work out great!