I'm going back to school this coming semester and i've saved up enough money working construction to purchase a 15" base model. I've never lived at a university so i've never needed to carry a laptop with me anywhere. I plan on bringing it with me to the library for homework/study groups and some of my classes. So i'll definitely need something to keep this $2,000 investment safe and free of scratches/dents. I'm definitely going to need a backpack to hold the laptop and books. I've been looking at northface and while they're at the top of my price range they seem really sturdy. I will be carrying around math/physics books and notebooks so it needs to be able to fit quite a bit along with the laptop. Any other suggestions for good reasonably price backpacks? I've also been looking at sleeves and cases for it. I'm not sure how necessary these would be since i will be carrying it in the backpack. If it is a good idea, i've been looking at booq cases which look good and seem to be really sturdy. Any suggestions for my situation?