Crumple

Hmm, I'm getting intrigued by Crumpler bags. (The website is alternately lots of fun and headbangingly hard to navigate. Yeah, design guys, I'm sure everything is there and so, so intuitively placed...)

Anyway, I like this one -- called Skivvy. (All the names are mad cool, as some people say.)

I wouldn't choose black, myself, but this is a good bag -- not too professional, not too unprofessional.