I just finished this mod last night, works great!. I have the led mounted between two switches on a 3.5 drive cover. One switch controls my CCFL and the other is the switch for the CD Rom. I moved the switch earlier. I will post pic as soon as i get it on the net.
One other thing, the cd rom switch is a mini toggle switch. I can't find any of these in a momentary, and i don't want to use a round button, so i flip it real fast and then put it down again