CG's makes some great products, but if you dont' know what to look for, their site can be very overwhelming.
First off, what kind of orbital buffer did you buy? If you bought the ~8" monstrosity with the 2 handles from like walmart, throw it away or return it.
Paint correction is VERY time consuming, especially without a good machine polisher. A good beginner machine is the Porter Cable 7424. Along with that, you'll need a selection of foam pads. I'd recommend the pads from
www.detailersdomain.com. Get 2 of each of the orange, and green at least. If you plan on applying the sealant or wax by machine, get a blue pad too. Get 5.5" or smaller pads. The porter cable isn't strong enough to utilize them.
Meguiar's makes some good polishes for DA machines (the porter cable is a DA (dual action) polisher), and einszett proline and prima are very DA friendly polishes. I have the einszett ones if you want to just buy a little bit.
You should get 3 polishes. A higher cut compound, a medium polish, and a finishing polish. Einszett, for example, has 3 grades. Intensive paste, High Gloss Polish, and Final Finish. You can get more cut than the intensive paste, but you would need to move to another brand.
This should be your process:
Wash - use a high concentration of soap to water, to remove any wax on the car. Dawn dish soap works for this, but you don't want to use it very often.
Claybar - this removes embedded contaminants that washing won't remove on it's own. Go to autozone and get the claymagic blue kit. Cheap and effective.
Polish - this is the meat and potatoes of detailing. This is where you use your buffer to remove the swirls/imperfections. Expect 4-6 hours per trip around the car. You can visit sites like
www.autogeek.net to see some basic instructional videos.
Glaze - this step just adds shine, or if you get a glaze with fillers, will help mask the remaining defects. This step is really the only one that can be skipped in a complete detail.
Seal - almost always a liquid, a paint sealant is made of synthetic polymers instead of carnauba. These typically last longer than carnauba waxes, especially on darker colors.
Wax - Looks are better than a sealant, but doesn't last as long. What most do is use a sealant first, then top it with a wax to add to the looks.
