they will probably make another "shell" for a steering wheel where you slide in the wiimote into a slot like the zapper, then it should be cheap since there is really not the much additional wiring needed, just a couple of buttons on the 10:00 and 2:00 parts of the wheel for gas and brake. as for the camera there are 2 usb ports, chances are a decent 640x480 webcam can be hooked to one of those ports, mic will probably be added via a headset, sword probably not since the wiimote is really able to handle that without a special sword hilt but you never know.