The latest thing I've done to the bike is install HID lights. This is a must for all modern motorcycle riders. Finally I can actually see a good distance at night and I don't even have to use the high beams. Well the high beams aren't HID so they don't work as well as the HID low beam. But I can hold the "pass" switch which is actually a trigger to hold the high beams on at the same time as the low beams. This gives me a little more light on the left and right of the HID low beam.
Check out my install, it wasn't so bad.
HID INSTALL on my Aprilia Mille