I shoot with a Contax 645, a Kodak ProBack, and a variety of portable flash units usually triggered remotely via PW's or similar. Naturally, I'm dealing with a welter of batteries and chargers--and all of this stuff just eats batteries voraciously. That's aside from the sloooow recycle times with AA's in the flash units. So naturally I'm considering HV battery packs to power all this stuff. I've looked mostly at Quantum and Digital Camera Battery--anyone here have experience with the DCB's? I'm in luck that there are cables available to power the camera, the digiback (that would be one battery--they have dual output sockets), and all the flash units I use (one or more additional batteries.) Additional benefit is that Quantum Turbo series cables also work with DCB batteries. Any opinions or experience appreciated. Wasn't sure if "Camera Equipment" was a better forum for this, but I figured "Lighting" is the usual scenario for which external packs are used. Thanks to all in advance.