I have a large-ish backpack (Naneu Pro U110) that holds everything I have including computer and used mostly for the travel leg of trips (car, airport, ect) and storage at home. I have a small sling (Tamrac Velocity 6) that holds my D50 w/ my 28-300mm mounted and one other lens (or usually flash) which is used mainly for tourist activities. Now I'm looking for something smaller to carry when I don't need EVERYTHING (and I rarely do) but still want more than just the bare bones. I'm thinking I'd like a messenger style bag that's somewhat flat. I'd like it it to hold the following: D50 + Sigma 28-70mm f/2.8 EX DF w/ hood reversed Sigma 70-200mm f/2.8 EX D HSM w/ hood reversed Sigma 15-30mm f/3.5-5.6 EX DG Sigma 50mm f/2.8 EX DG Macro Sigma EF-500 DG ST iTTL Flash Phone, batteries, memory, notepad, lens cloth, fiters The Sigma 28-70mm is small for an f/2.8 zoom even w/ the hood on, probably about the size of a 17-55mm w/ the hood OFF. The Sigma 70-200mm is quite a bit shorter than the Nikkor equiavalent... w/ the hood ON it's about the same as the Nikkor VR w/ the hood OFF. The Sigma 15-30mm is a pretty large lens for its focal length, measuring in at 5" long and 82mm filter, about the size of the Beast but a little fatter and not nearly as heavy. The 50mm f/2.8 Macro is about the same size as a Nikkor 60mm micro. The EF-500 flash is identical in size to the Nikon flashes. Right now the bag I'm eyeing is the Tamrac Adventure Messenger 4 but by the looks of it I'll either have to not carry the 15-30mm (not an option) or carry the flash in the outer compartment (not an idea I like, not much protection). Can anyone suggest a similar form-factor messenger that can hold what I want without becoming fat like a stereotypical camera bag? I'd like to keep things one-item deep to keep the messenger bag look.