I'm thinking of getting the lowepro vertex 200 as my next bag. Does anybody have one? It meets all my requirements - all day comfort, holds a laptop, carry on sized, and will fit two bodies along with 4-5 lenses and two flashes. Oh, and it carries a tripod pretty well to. It's the one in the middle below- not to big and not too small: or maybe the 100 is big enough? Anybody?