yes, the porter cable is the way to go. I bought mine from Griot's along with their entire system of pads, polishes, and waxes. They also have an excellent detailing handbook they send out with the kit that is very helpful.
I had never used an orbital in my life. I have become very experienced now, but from my first use, I have never had vehicles that look this good.
very high clarity, no swirls or blotches, and very deep coloring.
good stuff.