I'm looking for a backpack that can carry and DSLR and minimal accessories, and have plenty of room left over for other stuff. The Lowepro Fastpack 200 and Tamrac Aero 80 are close to what I'm looking for, but they still come up short as far as their backpack compartment goes. Basically I'm looking for a backpack, but one that also happens to have a camera compartment. Everything that I've seen is just the opposite: They are camera bags in a backpack form factor, and oh by the way here's a little compartment for other stuff. I have a Tamrac Expedition 5x, and that's the bag I'll bring with me if I want all my camera gear. However, many times I'll go out and I want my camera and *maybe* another lens, but I also want to bring a snack, a water bottle, maybe a book and/or Kindle, maybe a GPS, perhaps my Zune, etc., and I want a true backpack with plenty of non-camera related storage. Also, my son is a diabetic so if I'm with him I'll need room for his supplies and snacks. I just haven't seen a backpack like this. Any ideas?