I rock the messenger bag here at Keele University in England, everyday. People here call it "smart", which is their way of saying that it looks totally dope.
It's the perfect school bag for any university student.
I've decorated mine a bit with a punk rock band pin, and a 'Bushbusters' sticker that some kid gave me at an anti-war rally.
A big bonus about the bag that I have only recently discovered, is that vinyl fits quite snuggly in the main compartment. I just got a new stereo here, and new vinyl slides in nicely, keeping it dry for the bike ride home.