Sorry to hitchhike here... but I have roughly the same question +1./
I want to get some rechargeable AA also maybe C batteries (what kind? I don't have a clue) and a charger but know zip about the specs and what to look for. Seemed better to ad on here and get the advice of the wise ones rather than start a whole new thread. (thanks, grun)
I don't want to spend a ton, but I am just don't like constantly throwing out the hardware store batteries any more. Does that make sense? I'm kind of put off by the $ for the chargers, though.