Have you discovered Dealextreme.com yet? If you like LED flashlights and don't want to part with any more money on gadgets, then by all means DO NOT go to this website! I bought 4 rechargeable Lithium Ion 123 batteries and the charger for what I would normally pay for the throw away batteries alone. One caveat, they are unregulated and throw out 4.2 volts when freshly charged which could be a problem depending on the flashlight. Oh yeah, they are in Hong Kong so don't expect quick shipping, the plus side? Much of their stuff is shipped for free!!

http://www.dealextreme.com/products.dx/category.151