I've got many questions but I'll just leave it to you people to comment on various paint cleaners and their significance. Thanks

Paint cleaners? As in, cleaning your car's exterior?

example is Megiuars Deep Crystal Paint Cleaner

That sound like a "Cut and Polish" type wax...? Would it be too much for your new car when the wax is going to cut into the paint?

they work great on swirl marks and minor scratches. Plus if you don't wax your car for several years they will bring a shine back to the paint. But I wouldn't use it on a new paint job. Use Megiuars #9 if you have any marks in your new paint.

Concur w/ the Meguiars #9. As a swirl remover it's extremely fine and very gentle on your paint while still taking out the super fine swirls and scratches in the finish. If you go this route just be sure to follow up with a good high-quality wax though.

Zaino, if your willing to spend a few extra dollars and order on-line.

Sweet!
Meg #9 is a Swirl remover and I just bought it yesterday. If anyone can tell me any of the advantages of using any Paint Cleaner over Meg #9, I might give it a try.
(Meg #6 is a Cleaner/Wax)
Oosik, I don't mind spending more but I won't Zaino till it becomes readily available at the shops here in Aus.