I've always had the itch to put HID on the 929, especially after riding with a friend who it installed on his. Picked up a 4300K H7 kit from www.Xenondepot.com for $200 shipped (through a group buy). The Kit is all plug and play. Comes with a custom molded base for the bulb so the focal point is correct for an H7 bulb. You just clip the bikes headlight plug into the first harness on the HID kit, then plug the Xenon bulb into the 2nd harness.....and figure out where to tuck it all away.  Install is about 30 mins and pretty basic.
 

Only 2 issues with the kit:
First was the plug off the kit that would go to the bikes headlight harness. The 2 male prongs had a plastic surround which wouldn't allow it to connect to the Honda H7 adaptor (first picture). Easy fix was to just pull it all off with pliers, it broke away cleanly when bent far enough (Second pic).  I've been told by someone who recently got the kit that this is no longer an issue.

Second issue is the springs on the headlight housing are made to hold down that big Honda adaptor, not an H7 bulb alone which is thinner and has a smaller base. So the light is very easy to vibrate over bumps.  To correct this I took a 5/8th washer and filed away some of the inner edge to fit around the base of the bulb.  This still didn't hold it firm because of some gaps between the washer and the bulb and headlight housing.  A small ring of tin foil filled in the gaps well enough that the washer now applies enough pressure to keep it steady.

I'm pretty happy, with it focused correct it doesn't cause any more light than normal to go into the cabins of cars when behind them. Had it out for about 90 miles and didn't get a single high beam flash or anyone glaring at me. Clearly more light on the road. The low beam puts light a good 30 feet or so further down the road and has a much brighter pattern on the ground. I'll try and get better pics, my hand wasn't very still when I took the pictures.