If your looking for a machine for polishing make sure you pick a machine that has variable speeds, especial if your going to venture into doing it your self. Ones with one speed, you will find yourself burning through the paint very quick since it will be your first time.
I recommend getting a hood or door panel from a scrap yard to play around with and get use to the machine.
Hope that helps you, and if you ever want someone to fix and parts your unable to correct pm, email or call me
True Gem Mobile Automotive Detailing