Everyday I carry a lot of stuff, and I need it to be organized. I have carried a messenger bag laptop case in the past, but it is too small for my new laptop. It is hard to find a bag that will carry a 17" laptop, much less one that looks good.
I decided on the Booq Python XL and I am quite happy. It is fucking big, and I am literally still discovering pockets. I love the detachable bag that I can carry iPod/phone/pens/sketchbook/keys in.