For the playfield, I'd start with Novus 2. After a couple passes with the Novis, you may want to go the extra mile and get some 'magic eraser' (http://www.amazon.com/Mr-Clean-Eraser-Cleaning-8-Count/dp/B001339ZMW/ref=sr_1_1). Use 'em with 95% alcohol. These can clean up the ball swirls Novus can't get. Be careful though as the magic eraser can take off paint if you scrub too hard. One it's nice and clean, use some carnuba wax.