I received my bags a week ago, and after carrying them around a while, I must say I've never carried anything better.
I got the Imago in Olive/Linen/Wasabi. The linen color is darker than it looked on my monitor, which makes it even better for me. I was carrying a backpack for my classes, and I was a little nervous about going to a messenger, but I hardly feel the weight with my Imago. I really like that I can carry two big textbooks, a fairly large notebook, a Kindle, my ipod, sunglasses, wallet, various pens, chap stick, Aleve, a water bottle, and a mini stapler, and still have room left for little things. I like to carry my blue books in the back pocket. The adjustability of the strap is nice, because I carry it at different lengths depending on what I have in it. But perhaps my favorite features are the two rings for key straps. There is one in the main compartmen, and one on the outside under the flap. It makes carrying my keys convenient, and I don't have to look down to find them when I go to my car. ;)
My small cafe bag is olive/wasabi. (In case you were wondering, the olive/wasabi colors match my favorite three season coat and go well with what I wear in the summer, too.) My mother is a loyal Tom Bihn fan, and she has in her collection a large and a medium cafe bag. The medium is her EDC, but I found it a little too big for me. The least I can get away with carrying the better. I did use her LCB for school one day, which is why I decided to go with the Imago. My books fit perfectly, but not much else. The SCB can hold my Kindle, ipod, wallet, a 9.6 x 6 inch notebook, a paperback, and various small items. I don't always carry that much, but it's nice to know I can when I need to.
I have a medium timbuk2 shagg bag (the new version of the slider) that perfectly fits my Droid. I don't like that it only comes in one color, but I can swap it easily from bag to bag, and I can put a little cash, a credit card, and my ID in the front pocket if I need to. The other bad thing about it is that it does slide on the strap, but I solved this problem with a button (like you get as a campaign souvenir) on the strap below it. This works very well. It's not as much of an issue with my Imago, because I like to carry it higher than I do my SCB.
Thank you Tom Bihn, and everyone on this forum! I learned a lot about which bag would work for me by reading the various posts.
(I will post pics when I get a little free time.)