All of the above are great suggestions. To answer your question, I have a Carradice shopper and I love it. It is also waterproof, and holds a tremendous amount.
__________________
"Real wars of words are harder to win. They require thought, insight, precision, articulation, knowledge, and experience. They require the humility to admit when you are wrong. They recognize that the dialectic is not about making us look at you, but about us all looking together for the truth."