I posted this in the other forum. maybe someone here is interested. Some photos:
Picasa Web Albums - Dan - Pentax sling bag
Top compartment: flash, spare AA's for flash (Rayovac Hybrid) in a case, AA charger, K20D battery, stored in a compact charger. I keep the chargers in ziplock bags. There's a small hot shoe table stand for the Sigma flash in the pocket of the flap.
Bottom Compartment: 10-17mm fisheye, 100mm macro, FA 35mm and 50mm. I lay the 50mm horizontally at the bottom of its space, with some foam over it and lay the 35mm on top of the foam. I use a single 49mm standard rubber hood on all my primes, originally designed for a 50mm lens. It's very compact because it's collapsible and it does a better job on the 35mm and 100mm than their dedicated hoods.
Main compartment: K20D with 16-45mm, 55-300mm. The 16-45 and 55-300 positions are interchangeable. If I have the fisheye or D FA 100 on the camera, I move the 16-45 to the rear compartment. If I have the FA 35 or 50mm on the camera, I move the 16-45 to the 10-17's place and lay the 10-17 sideways on top the remaining FA. I leave the hood for the 16-45 in the main compartment.
Main compartment cover (inside flap): 49mm and 67mm CPL's.
(outside flap): Three ziplock bags, containing; lens cleaning cloth, Raynox 250 diopter in 43-49mm adapter, body & rear mount caps.
If there was any way to do it, I'd have the 18-250 in there too.
Note that I dulled the Pentax logo on the Sling bag with black magic marker for added security.