I'm using a Logitech wireless keyboard with built-in touchpad at the moment. Haven't had any problems with that (a lot of people say that you shouldn't use wireless keyboards as they aren't too reliable in a noisy environment) but a wireless MPG would be good. I keep looking at the Chinese wireless units for around £100 which would make zero-setting while leaning over the machine much easier. Still, finishing the swivelling monitor bracket so I can actually see the monitor properly while zero-setting would be a good step in the right direction...