KerryisKing,
Here's what I've learned about gettting a good finish from gloss paints. There's basically two ways to do it:
1. Put the paint on very thin and in multiple coats. If you're using an airbrush, thin the paint down quite a bit and be prepared to lay many coats on. It helps to lightly sand the paint in between coats. If you're using a spray can, warm it up in a dish of warm water as this will allow the paint to flow out better.
2. Put lots of coats on (ie. don't worry too much about thickness and orange-peel, etc), and then use a polishing kit to get the orange-peel and other perfections out.
The best job comes from combining #1 and #2. Of course, it takes lots of work too. Some guys have got the right 'touch' and can get a really great finish from #1 without any polishing. My skills and experience aren't that great yet.
M.