So I'm not the only one to discover wheels!! *LOL* That looks perfect for the job and saves wrecking your back - leave that for all your camera equipment.
I recently bought a large Roots rolling duffle bag. This will hold all my tripods, lights & stands, lighting umbrellas, and then the large pocket on top will hold my Lowepro Trekker bag with all my gear for when I'm doing shoots. There are even side pockets large enough to hold my reflector discs and all the other crap and junk we seem to 'need'. I keep all my gear stored in this bag when not in use rather than scattered throughout the house. (Dodger has also discovered it's great for napping on too).
I'm a big believer in 'why carry it when you can wheel it'. Another great thing is those foil lined cooler bags with wheels. They also keep your gear cooled down on heat wave days in your vehicle.