The Goal Zero setup looks really nice. I'm new to solar power, but I really want to have a way to sustain electronics off grid.

What I carry now is a New Trent IMP880 (8,800 mah) battery pack. It's charged from the wall (9v/1A DC) and it's output is (5v/0.6A) and can recharge my iphone fully about 6 times so it's pretty useful for 2-3 day trips.

I'm interested in being able to charge battery packs with USB output (maybe even the IMP if possible) as well as AA/AAA batteries... I'm just not sure what I need to get started. I may just duplicate one of the setups above if it seems to work well.