ok new question after ebaying, i found these
http://cgi.ebay.co.uk/arcade-BUTTON-red ... 1e578d0dc4i can see they have 2 metal thing i assume you wire
so do i basicaly wire them to the little metal bits on the motherboard of a controller to basically act as the rubber buttons?
lastly if so any resistors needed or that or is it just straight wireing between the button and the MotherBoard's contacts?
cheers for help people

(basically im planning on making my own arcade machine and wiring up a SEGA saturn in there, got like 50+ games from when i was a child lol, including MK3!!

)
so ill just mount screen in there, have an extension cord in there and have the screen and saturn powered in there but connect the controler to the sega console and mod the controller with the arcade buttons so i need help on how to wire M-B controller to arcade buttons please