McShug- Welcome to Autopia!
I'm not familiar with a lot of those products, but generally anything you can use by hand can also be used with the PC.
Be sure to get a lot of pads, especially if you're gonna try out a number of different products.
Offhand, besides the SFX2, I'm confident that you can use the:
Meguiar's: Scratch-X, Clearcoat Body Scrub, and DC #2 (note that this product is nonabrsive and is like "makeup for paint"), the
NXT wax.
Autoglym: Paint Renovator (pretty aggressive IIRC), SRP (good stuff IMO), EGP.
Zymol: HD Cleanse (very mild).
You might try the Scratch-X on nasty spots/scratches. If that doesn't work maybe try the Paint Renovator. Then I'd probably do the whole car with the SFX2 and top with wax. But I *do* like the SRP too...