I have some pictures of what I use for powering my FT-817ND radios here:http://kb5wia.blogspot.com/2011/05/solar-power-for-ham-radio-satellites.html
Basically, I use PowerFilm flexible solar panels, connected in parallel directly to an inexpensive (on/off style) charge controller. Then the charge controller to the battery. For my 7 Ah SLA battery, I try not to charge it with more than 500-1000 mA, and it has held up well so far; I've also switched to using a LiFePO4 pack. System has worked well operating portable from a number of different locations.
73 de Dave KB5WIA