Seeburg coin mech

[ski123]

I built a jukebox that looks similar to a Seeburg disco model of the late 70's and 80's.  I was wondering if I could buy a Seeburg coin mechanism like the one in the ebay auction at
 http://cgi.ebay.com/SEEBURG-COIN-MECH-COMPLETE-C-G-R-BUTTON-CABLE-SHOOT_W0QQitemZ130089017482QQcategoryZ13723QQssPageNameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting
and hook it up to the computer in the jukebox or is it a problem since it has a plug on the end and what looks like at least three or four wires going to the plug?  Is there a way to safely hook this to the computer without getting a seperate power supply or anything else?  I have a numeric keypad that is visible and is used to make the song selections and a regular keyboard that I use for adding songs and doing maintenence on Wincab.  Both the keypad and the keyboard are always hooked up and working via the usb port for the keypad and the keyboard port for the keyboard.  I might be able to open the keyboard up and connect wires if I need to, but I don't want to open up the numeric keypad if it's possible.  Would I be able to use it with Wincab jukebox or do I need to find something that is simpler and has fewer wires?  If this would work with the computer do coin mechs like this appear on Ebay frequently and for a better price or is this a good buy? 
Thank you for the help and sorry I posted this message in dos/wincab also, but there doesn't seem to be that many people in that section and the auction for this coin mech is about over.

[Ken Layton]

That mech is for classic Seeburgs from the early 1950's. Those are the machines worth a lot of money and very collectible. I have a friend with a Seeburg "C" and all he has left to resore his is that his is missing those exact same parts. Everything in that auction link would fix his machine as his is missing everything that's pictured. He's been looking for those parts for 3 years. Those parts for that vintage don't show up much.

For your application you should look for something alot newer and in better shape like off the a 1970's Seeburg that's been partsed out. Those later parts are much more common and would cost you less.