>poking around on youtube for robot noises to use
>turns out there's a fuckload of them
http://www.youtube.com/watch?v=mHQIiB4dJfs
http://www.youtube.com/watch?v=lX1cvOsyzmw

including plenty of robot-voice tutorials
http://www.youtube.com/watch?v=5TWZb0QfJh0