Right here's something I've struggled looking at. I'm after something for what the Lighten Up And Shoot boys call the "backpackers studio".
I want something lightweight and small I can sling over my shoulder and take a pair of light stands, a brolly, westcott apollo softbox, half a dozen flashes, and associated triggers. Though I'll probably not need all the flashes at once but it'd be nice to store them in one bag.
I got a back with my interfit strobies twin brolly pack but it's a bit bulky for carrying and no storage for the flashes.