I couldn't find a nice camera bag to put my dslr + 4 lenses + 2 flashes + tripod, so i was thinking of using the casual army backpack ( black color, "adventurer" ) to carry my stuff. however it has no padding - so i want to get some for it. any idea where i can get it cheap? ( please don't recommend me new bags because i've already made up my mind.. thanks! )