I've been using the 4 Star 4-90 Spray Wax/QD with nice results. It's a gloss enhancer with some carnuba.
I did my car last week with Poorboys Polish and then topped it with a coat of EX. Since then, I've washed it twice and used the 4-90 Spray Wax Plus as I dry and it gives a nice shine and little extra protection. Of course, I can get a little extra shine because I have a red car.
It's nice but I'm sure I'll be trying something else in a few weeks...