Nice work, the car looks great!!
Yes their are many other sealant and carnauba waxes, but you are using what you are comfortable with. Another common and well rated wax is from Autogym, and it is not suppose to stain trim! Since you have a white Focus, I would also recommend that you buy a bottle of Iron-X.
Here is a great article. http://www.detailedimage.com/Ask-a-P...nd-a-clay-bar/