All great suggestions here;
My two cents, if you are going to be doing a good deal of night riding, and intend on going over to either and 8" HID, or 8" halogen main, and the helmet lights, you may want to consider rewinding your stator for a skosh more output, and the most import thing is to have the stator altered so that both out puts go straight to the regulator/rectifier. This is known as floating the ground, and there is a set of instructions on how this is done in the download sections. This is a very common modification, and is required when going to a light like a Baja designs diablo, or even a trail tech type light.
What it does is put both of the stator outputs to the battery, and you run your lighting off of your battery. This makes the whole system DC, instead of running your lights on AC which is stock and rectifying some of the AC to DC to charge the battery. It also requires a new heavy duty regulator/rectifyer. In fact I think trail tech sells complete stators and heavy duty reg/rect kits. Have a look here:
http://www.trailtech.net/
There are a couple of advantages of running the lighting system on DC, #1 for me would be that when you stab the rear brake and kill the motor, the lights stay on, or if the motor dies while your going down a big hill or something like that. The second would be you can run your helmet lights off the bike system instead of having to wear a battery pack. Cheeseberger ran this set up in the Baja 1000 this year, a diablo headlight, and a helmet light with a quick disconnect that was tied into the bike electrical system. He had baja designs do the ground float that I was talking about earlier for more output and had no problems with two full nights of riding during the race.