i have some novagem light up buttons from groovygamegear. i doubt i'd ever use them for all the buttons on my panel, mainly due to the additional cost and wiring problems. however i found they are great for basic admin functions. i used standard happ buttons for most of my panel, but i used two light up buttons, one for pause, and one for Exit. i got the insert labels for them, which are awesome. that way people don't too often have to ask me how to pause the game, or exit back to the menu.(a few people still ask)