I have/use the backpack case. I also have a second ST16 which, for now, just travels in an old small laptop case (making me remove the sticks; ick). I'd like to find a case that handles the entire system, including the second ST16, but it looks like I'll have to make it myself. To that end, I've obtained an appropriately sized aluminum case (24.5x14x8.5" inside) and the foam (same stiff stuff I use in my gun cases), still working on the design of the foam cutouts. When I'm finally happy with the design, I'll take the foam and files to work and use my company's waterjet cutter, so I get much cleaner cuts than I would with a knife. I'm currently trying to incorporate room for: The H (folded - can't fit open), 2x ST16 (+ sunshades), extra props, Wizard (not that I use it, but would like to keep it all together, and it's small), a SteadyCam grip, a set of prop guards, at least 4 and preferably 6 batteries and the Venom 4-batt charger (this one is the challenge, and I may have to give up on it. If successful, I won't worry about the OEM charger, as I keep an 1800-w inverter in my car, so I can use the Venom anywhere). Anyone good at this sort of design (I'm not!) and feel like being nice, please feel free!
/e: forgot to include - MarcoPolo hand unit
I agree with Jester about that one case. WAY too pricey...