Hi, Im doing some research for a camera backpack project for a design class and am looking for a little insight on the subject. Any and all help will be much appreciated. I'll be glad to share what I come up with in a few weeks! Ive been researching exhisting bags for a few weeks now and am looking for personal opinions on some general things at this point: -How much gear might you carry in a pack? #of lenses, bodies, accessories, and misc. items? -If you do carry a pack do you carry it alone or with an additional form of storage? i.e. beltpack, sholder bag, etc...? -Other than the issue of efficient gear access with a backpack, what other issues arise?