Let me go a step further... what would you recommend if you were to use the xbox360 in an arcade enviroment, with a 200" screen, projected, with 4 wired controllers. A coin slot w/timer on each controller would sell the time and turn on/off the usb controllers.
I can't have a game that wouldn't allow others to join in until they finished as one person could stop 3 other seats from being used. Also, nothing above teen rating as it is open to the public.