Backpack for DSLR, digital camcorder, and pocket camera?

I'm looking for a relatively weatherproof backpack suitable for carrying a Nikon D700, 17-35mm lens, 28-300mm lens, and 80-200mm lens; a Canon Vixia; and a Canon Powershot SD960 along with basic accessories such as battery chargers. Ideally, the bag shouldn't scream, "Hey, there's a camera (or two or three) in here!" Ideas?

LoweproSuper Trekker AW II… ^^
or Vertex 300 AW

Anything lowepro at least whispers camera. Still… The flipside 400 might be your thing.