Here you go Allan, my solution with my G1, 'KATA DC435', takes camera/45-200 attached and the 14-45 sits under the grip side of the body, plus a polarising filter, cloth wipe, spare battery and a couple of cards. External dimensions: approx; w7"xh7"xd5", I then put the lot in my man bag . . . although there is a strap supplies.
sorry for poor pictures . . . its early and I have only had one cup of tea
This picture is as near as . . . 1.1 scale! . . . a tad large if anything?
Spent a couple of hours at WH/Express one afternoon, with my D90 and the G1, wanted a bag that was minimalist, ended up with two, 437 for the D90/18-70 and this one for the G1 package. The whole idea was 'light/minimalist/compact'!!! . . . to fit in my man bag for every day use, the G1/lens package is perfect! makes the system modular, one bag out the other bag in depending on which camera I want . . . afraid the G1 is the 24/7 winner on usage stakes.
CJS