I will be purchasing my first Macbook Pro this week, and had a question regarding protection. I have a North Face Surge backpack now which has been great, but I am worried about dents. I've been looking at the Waterfield sleeve and Tom Bihn Brain Cell. The Brain Cell seems nice, but I doubt it would fit in my bag. How well do you all think the Waterfield/Surge combo will prevent dents from being in the bag with books and such? Are there any other sleeves I should consider?