This thread started in 2012. If OP hasn't graduated yet I blame the lack of proper backpack.
But for the benefit of others my thoughts;
- I use an osprey hikelite 26 for commuting and it feels great when full
- osprey has the kickstand, which may be good
- definitely get one with good framing and that mesh to protect from back sweating. It really helps!
- there may be more textbook and laptop appropriate ones. But with tablets nowadays less room is reqiired.
- A plug for osprey. If anything breaks, you fill out an online form and attach a picture and they send you spare part. I did that for a hip belt buckle I smashef in a car door and didn't even need to show s receipt.