Very nice! Since you asked for a suggestion, I'd say a bright color like a yellow or green or a bright blue (the new fluorescent yellow, vert gazon, vert thyme, '05 turquoise or the new turquoise or EB for '08) and/or (given your preference for darker colors) a dark brown bag, like '05 chocolate or '07 cinnamon. I can't tell that you have one from my monitor, in case one of those bags is cafe.