I 2nd the recommendation made regarding the P/C rotary. I have been using the model 7424 for about 10 years on my vehicles. Incredible results, and you can use it without any reservations about burning paint. a first time user is just as qualified with this tool as a pro from a safety standpoint.
wolfgang's paint sealant and a topper of Souveran on our Red Boxster S-so fine.......