As an all rounder that can be used by either hand or machine, I'd suggest Blackfire Gloss Enhancing Polish. It's dead easy to use, gives a deep glossy shine, and is not too bad price-wise either...

http://www.polishedbliss.co.uk/acata...sh-polish.html

Best to apply it using a glazing pad if working by machine, or using a soft foam pad if working by hand. We are expecting fresh stock by the end of this week if interested.