I got a Speedlight 600 for Christmas and my 100-300 lens was just returned after 2 months in the shop. I keep my camera in a small Tamrac bag, but now I need a larger one. I'd like one that can hold the camera (D80), the flash and the lens. I will probably get one more shorter lens than the 18-135 that's on the camera. I already have a rectangle over-the-shoulder bag. I'd like some suggestions on backpack style bags. A key thing for me is that it would have to be small enough for stadium security as I go to a lot of baseball and football games. Please give me your .02. Thanks, OTAP!