Looks like my camera bag isn't going to be big enough to carry the 400 along with my other gear, so now I'm in the market for a new camera bag as well.
Normally when I'm going to be using the camera bag I'll be taking the 400mm F/2.8 IS, 70-200mm F/4L, and two Canon 5D Mark III's. Additionally I might like to carry at times my 24-105mm F/4L IS, along with the 1.4x teleconverter and my laptop (15"). I've looked at the Think Tank International v2.0 Rolling Bag, which I like a lot, but would like some other recommendations as well.
I'd prefer to have a rolling bag if possible, but I'm open to suggestions as well. The 400mm F/2.8 IS, 70-200mm F/4L and the two Mark III's are musts for the camera bag. I can sacrifice the others, but would prefer to be able to be able to have room for all.