I carry an Eagle Creek "Guide" bag frequently, and I also have a really nice custom-designed bag that we gave out as a holiday present here at work. It was originally a bag used by a famous DJ to carry his laptop and stuff to gigs, but it turns out to be a near-perfect emergency bag that I keep in the car.

The Eagle Creek bag is really nifty, "manly" enough that I don't get any poop for carrying it. We actually have 2 of them, my wife has one because she hates "dorky" diaper bags.

When I'm home I'll post pix.