The astroflights are prob the hottest charger, if you can find them in stock. 8 amps and up to 9 cells, charges lithiums only. Schulze's most economical charger is only 5 amps but will charge several differnent types of batteries, but is also harder to use, where the astro is more plug and play. Plus the astro's a lot less cost. You'll need 2 chargers, chargeing the packs seperately as 5 cell at 5.7amps. Cosel power supplies work well. You can only find them on ebay now for $24, 13 amp. Light Flight RC sells something similar for a couple dollars less. You have to add your own power cord, but for the money they're a good deal. Orbit, I don't know much about them.

Re read Tony's post #125. Of all the tips he's given us all, this is the best post he's made for someone new getting into electrics.