I would add Sherwin-Williams to the list of good BC/CC systems. I've used their Ultra 7000 series paints. I use the Ultra 7000 Super Glamour Clearcoat. It really, really shines, and it lays down really smooth if you get the gun set and lay it down right.

When you go to a BC/CC system, be prepared to spend some big $$$, because you're buying basecoat, basecoat stabilizer, clearcoat, clearcoat reducer and clearcoat hardener - not to mention lots of acetone for cleaning the gun, strainers, measuring cups, etc. I bought a gallong of 96 Corvette competition yellow basecoat, a gallon of clear and all of the assorted other stuff, and dropped an $800.00 bill.

Get a GOOD respirator that is made for organic vapors. This stuff is double-nasty on the lungs.

Basecoat is easy - almost like spraying primer. It flashes really quickly - just get plenty of light and make sure your color covers evenly. Clearcoat is tougher, but if you can lay down acrylic enamel, you can do clear. Like spray said, it lays down much easier with a good HVLP gun. I've heard great things about the new 3-M gun, and I wish I had one, but the street price is about $530. I have a brand new Binks M1-G that I really like, which cost about $300.

Finally, get the product data sheets, and follow them like Moses just handed them to you after coming down from the mountain.