If you look at the photo above of the black bag--everything is stuffed in there tightly. I like easy access. I have been using this wonderful bag for a lot of things plus as a camera bag. http://www.filson.com …2075128&parentPage=family
They did not make it in green when I got mine, but the brown has "weathered" nicely. I'd post a photo of mine with my 40D in it, but I left my P&S at the office. Anyway, all I use is a folded towel in the bottom for padding. It will carry my camera with attached 70-200 f/2.8 with hood deployed and even a 1.4x TC. I normally carry my 40D with or without grip with 18-200 OS attached, hood deployed, no lens cap so it is at the ready, and a 30mm in a lens case. I can carry a 580EX in its case under and between a towel layer. Spare batteries, Epson P-2000, light meter, ham radio hand held and other stuff in the two pouches; and a newspaper, a few files and magazines in the back pocket. This has been in court with me, up tree stands hunting in the rain, in museums, on a ski slope, on a motorcycle and bicycle, day hikes, motocross tracks....
I had a TimBuk2 medium laptop messenger bag and tried Domke inserts. I returned both the bag and inserts. The medium bag is too small with a lap top insert. The laptop insert was not removable. My filson bag without inserts carries more than the medium TB2 bag with inserts--largely due to the lap top insert. The Domke inserts are too thickly padded and take up too much interior room. You are also stuck with the size inserts you have as they are not configurable. The TB2 medium messenger bag without a laptop sleeve hold 12 rolls of TP, the large holds 16 rolls and the XL holds 20 rolls(my Filson medium field bag holds 7 rolls). I ordered the medium TB2 on sale a few days ago from Performance Bike. I going to make my own padded inserts from some nylon taffeta and 1/4 inch closed cell packing foam. These will be lighter and thinner than Domke, and by using a separate lap top sleeve, I can go with computer or without.
BTW--when I put my camera, two lenses, a flash and computer in the TB2 medium bag, it was extremely heavy! I would not want to carry it much farther than house to car in garage!
For me--I forget the kitchen sink and just carry the bare necessities of what I need. One or two lenes, sometimes a flash, sometimes the P-2000 (but rarely since I got 4gb cards).