If you paint is in good shape I can give you some general ideas.
I happen to use mostly Meguires products ( Got the PC and product as a present )
The nice Straight Polish ( Meguires #7 or Deep Crystal #2 ) if you keep up on the waxing and dont let it get away from you you shoudln't typically need more than that and good wax
If you let it go a bit you will want a mild cleaner ( Meguires #80 ) then use the polish then wax.
What has worked well for me so far is the following.
9006 pad for Wax
8006 pads ( Polish on 1 Cleaner on 1 )
7006 pad as a backer for Micro Fiber bonnets
I used #83 because I had some light swirls and surface scrathes and water etching so I had to go with a more agressive cleaner.
So it went like this for me :
Megs Deep Crystal Car Wash
Megs Clay Bar Kit
Clean with Quick Detailer after Clay
Paint Cleaner ( Tried #80 first then switched to #83 both with the 8006 pad)
Deep Crystal #2 Polish ( this a retail product in thier 3 step program w/ 8006 pad)
NXT Wax by Hand
7006 Pad with MF Bonnets for removal of wax
Quick Detailer and MF towels for clean up
You can pick a chose along the same line for your car as you like, but just understand what each product is designed for. For referance I have a 2005 Dodge Magnum R/T in Brilliant Black Pearl, and she is a harsh mistress
Hope this gets you pointed in the right direction.
-Robert