For the last few years I've been using AW's protected RCR123 cells and an Ultrafire charger. The combination works well enough, but the charger is a little "fiddly" with the required spacers and lack of polarity protection.

I'm looking for a quality "smart" charger that is built specifically for the 123-size cells and has polarity protection (the way all AA chargers do.) Is there anything like that on the market?