I currently have a Wenger backpack that I got at the Apple Store. It's great in every way.. it looks cool with its black and red color scheme, it's extremely solidly built and it fits just about anything I throw at it. The only thing that REALLY sucks about it is its weight. Even when it's empty, it's pretty heavy.. once I load it up with my MBP, its charger, books and the rest... well, it gets CRAZY heavy. Now I'm looking for something that has as many of said positive characteristics as I just mentioned... except it should be as light as possible. Anyone know of a company that specializes in making superlight backpacks? Suggestions welcome!