Or even a Canon monolight with the radio capability that permits (requires mains power) use of AC and PCB Mini Lithium (or other brands).
I hope someone (Pocket Wizard, Radio Popper, Phottix, PCB, Yongnuo, etc.) makes a regular receiver trigger that would allow using 600's with other manual flashes. I know Radio Popper had that cability with the 580's and other flashes, but since I really like the 600's, it would be nice if someone could get around legal barriers and do this...
How cool would an Einstein CSXCV version that receives Canon 600 compatible signals be?
Back to Priolite, they also have a model without [edit] batteries for under $ 900 ([edit] mians only).