Me too /aol I'm putting a USB keypad in the admin panel of my cab specifically to control SKJukebox. Additionally it will give me a nice bunch of admin keys for MAME which will allow me to go with nothing else on my admin panel but the keypad and a big "quit" button. I wouldn't necessarily need even that but it will improve the ease of use for people not familiar with the cab. Another plus is that some of them have a built in 2 port USB hub which will allow me to neaten the wiring a little for my spinner.
I've yet to pick one up and get it out of the case to see how easy it is to mount one through a panel. If anyone has one handy they can de-case, pics and info would be appreciated.
Another thing I'd like to do is relabel the keys with their jukebox functions. I'm still looking for a good way to do that. If I can't find a good way that will be durable enough I'll probably put on of those Happs triangular buttons on either side of the keypad. Like so:
