I've recently been bitten by the Blad bug and have been using my DLSR cases, with limited success, with the Blads. I thought I could make do with my ThinkTank Retrospective 20 -- it fits two bodies with lenses and a few backs, but in practice, it's awkward to use. With two lensed bodies and multiple backs (color, BW) several filters and a prism finder, I was constantly going deep into the bag for something and then didn't have a place to put stuff as I swapped out pieces. I'm thinking a more horizontal bag would be better for the Blads. Right now I'm looking at a few of the rigid PortaBrace bags, but don't want to buy another bag that will just sit in the closet.