I have the Jinx Backback also and it is the best one I have ever seen.

The crappy backpacks are $69 at local stores so 10 bucks more for an awesome one isn't pricy to me !

The main compartment fits my softsided cooler I take my lunch to work in. Music pocket for the iPod, the IBM Thinkpad fits in the laptop area.... I have not figured out how to fill it up completely yet !

dragolia