I'm considering purchasing one of Dan's Black Bags, as I am in dire need of a new messenger bag. I can't tell, however, if this bag will be ridiculously large on my skinny frame. I am 5'10", 140 pounds. I will use the bag to commute 10 miles roundtrip to school once or twice a day (carrying spiral notebooks, laptop, a novel or two, and a bike lock), and I would like to be able to stash a few odds and ends from the grocery store. I have looked at the pictures on Dan's flickr and on the forum, but none have height/weight of the wearers listed. Would this bag swallow me whole? Any feedback from owners would be greatly appreciated.

For whatever it's worth, I'm also looking at a Chrome Citizen/Metropolis and a R.E.Load Civilian, but I would rather support Seagull if it won't be too large. Thanks!