Owner contribution
I needed a carryon for all my gear for an upcoming safari. It's still carryon size and is great. Two pictures. First one is first layer of packing. All my lenses, two bodies, a wide angle hood, and a pair of binoculars: So if you're keeping track, 2 bodies, 6 lenses, a flash, a pair of binos, hoods and still empty space. Finally configuration will swap out the kit lens with a 100mm f/2 and add in a Canon EOS 20D, I think. Add in chargers and such. This bag also has a little external pocket to support a tripod or monopod lashed to the side, 3 large pockets for flash media and such that fully cover the camera/lens area, an external pocket that could hold a laptop in a padded envelope, and an attachable day pack. Plenty of attachment points and a decent harness with buckles. It's not up to my Lowe Alpine backpack standards, but probably as good as your average Jansport. Total cost (w/ shipping) on e-Bay: $44. thanks to Eric (Vondo) for photos & info.