Thanks to my buddy FastBilly, I have a new lightset for my bike. Now I can hit the trails at night and have fun with my buddies that already are doing regular night rides.
Setup includes a 10w and 15w light unit paired to a 3000mah and a 4800mah Lithium Ion battery packs. I dropped almost 2lbs from the original NiMH setup with the Lithiums. Conveniently enough, I rigged the whole setup to run with my airplane battery chargers.
The 10w head unit mounts to my handlebars and the 15w to my helmet. : )