I did the upgrade awhile back using Messinger 13's pic's and instructions and had no problems, best 75 dollars I have ever spent.
I went with the 5000k bulb and it has a faint blue color to it when you first turn it on, but in about 15 to 20 seconds after it has warmed up it is a diamond white light. About the same brightness of a flash bulb on a camera.
Don't throw your old bulb away, in the unlikely event your HID bulb fails, pull the dead bulb put the old halogen bulb back in, unplug the leads on the ballast, since they originally went to the back of the old halogen bulb and you can see till you get a replacement, which reminds me. You won't know how you ever put up with the halogen. Check out Messenger 13's directions and pictures and go look at that area of your bike. Some have taken the nose cone off to do it, but Joe's got big hands and he doe's it in about 20 to 30 mins, took me 45 mins.
Do the low beam and you will hardly ever use the stock high beam. Some have done both, but being able to put it in without taking the nose cone off worked for me. If you can think of any questions, shoot Joe or Messenger 13 a message, he helped me, it just looks scary, it's really easy.