Hi, Here in Australia, i haven't come across any places that stock PC's... i'm not quite sure, but i think America runs a different power socket, so they probably wouldn't fit in our power sockets down here anyway, even if i did order one from the states.... our power sockets look like this... as such, i'm looking for a local alternative. What should i be looking for in a ROB? I have come across quite a few that are available locally, but what sort of specs should i be looking for? Speeds (RPM)? orbit eccentricity? mounting system for the pads? Motor size (voltage)?