I am considering someday buying a digital SLR camera, and at least on paper I like the looks of the Sony Alpha family.

I have a question about Alpha accessories:

Is there a cigarette lighter adaptor available for charging an Alpha's battery while on the road? I know that SLR don't need much power to operate, but if I took the camera on a trip to backcountry, I'd want a way to top off the camera's battery en route.

Also: what kind of body-hugging pouches/bags are available for SLRs if you wanted to take one on an extended hike?