I have a gently used Lowepro protrekker AWII backpack with all accesories including the daypack. I think i still have the tags etc. No rips tares etc.Selling to add to my D200 fund. Here's the B&H link
Will easily hold 2 pro bodies and several lenses including a 500mm lens. The harness system on this bag is the best i have found on any large backpack.