I got this Cygolite for under $100

http://www.cygolite.com/light/produc...lorerNiCad.htm

Took it out for a spin tonight. It's awesome. It has a narrow beam of 15W and a wide beam of 10W. With the narrow beam I could see ahead but was scared to turn; with the wide, I could see okay but had to go slow. But with both on. I could basically ride like it's daytime. I'm so glad I have this much power. Very good lighting. I can't attest to either battery power or weatherproofing, but it can light up the road.

Doesn't have a smart charger though. That's the main sucky thing.