MichaelB, I see that you were proto-typing your Control Panel buttons, what did you decide to go with?
I'm currently in the design / acqusition phase of building my Juke and I'm still trying to decide on a button layout. I'd like to use a set of square (lit) buttons, to stay with the look of a Jukebox and a couple arrows (left / right) for navigation, similar to what you've got on your mock-up.
Suggestions?