Here is a site with solar power solutions. They seem to offer a range of solutions. They have an "inverter" I think, and some other stuff so you can charge your batteries in the field.

I was thinking of something like this for backpacking with amateur radio. Finances says thats a long way off... but.. nice package.

http://www.ctsolar.com/

Note: There are probably more sites like this, I'm not endorsing it, as I've never bought anything from them.