The Maha MH-C204W and the La Crosse BC-900 are the two chargers everyone has been talking about lately. The BC-900 is a bit expensive, but has some unique features. For a source, try:
I have four Lightning Pack 4000N chargers (under their original manufacturer's label - Hubgiant), and find them very good for the money...fast charging and cool. Available at:
As for batteries, the Maha Powerex, Energizer, and Sanyo batteries are all very highly rated. I have been using NexCell 2400 mAh batteries, and am very pleased with them (can be purchased for about $1 US each on ebay). I bought 16 of them...4 in the camera, 8 in the camera bag, and the other 4 power my computer mouse.