I use meguiars products on my car. And how far you go really depends on how crazy you get. At the bottom is a good flow chart from autogeek.
I would definitely recommend getting a clay kit (the meguiars one is around $20), it makes a huge difference.
Last year I did Wash, Clay, Polish, Wax. This year I'm going to add in the Glaze and Sealant in between Polish and Wax, supposed to make it even shinier and the sealant makes it last longer. And don't get a regular/cheap buffer, what you want is a dual action polisher. It makes it almost impossible to mess up your paint. I have this one:
http://www.amazon.com/Meguiars-Professional-Dual-Action-Polisher/dp/B002XOXSI2/ref=sr_1_2?ie=UTF8&qid=1393675459&sr=8-2&keywords=meguiars+dual+action+polisher and you need appropriate pads for it as well (one for compound, one for polish, one for finish). And the first time I used it was on my C6, super easy to use, impossible to mess up if you can read
