I know there the light sticky, but that is a very overwhelming thread and I don't want to build my own light. Here is specifically what I'm looking for:

My commute is 15 miles each way. It will be in total darkness in the upcoming winter months. Its mostly MUP with a few miles in a bike lane with traffic. I'm looking for a rechargeable lighting system with a smart charger (or whatever it is that make charging the battery without frying it easier.) My budget tops out at about $250.

I've checked out the Cygolite Nite Rover Extra (battery seems iffy) and the Blackburn X3 and X6 (the battery shape worries me a little.) Any suggestions would be greatly appreciated. Thanks.