If you are unsure of the urethane bc/cc paints, try buying a small amount of it first and spraying something less important like a set of wheels or the underside of the trunklid. I think you'll find it easier to work with than most acrylic enamels.

It is purely a matter of preference, but I think DuPont's "Chromabase" paints are the easiest to use. You simply mix equal amounts of the color and activator and spray it. It sprays about like old fashioned lacquer and dries very quickly. You can use just about any acrylic urethane clear over it. I like Five Star's high solids high build clear. It's tough, easy to use, extremely durable, and a lot less expensive than the big "name brand" clears. I also use Five Star's "Quickbase-D" activator in the Chromabase colors. It works just like the DuPont "Basemaker" but costs less than half the price.

As Pat and Don both stated, the urethanes tend to be somewhat more transparent than older enamels and lacquers, so plan on an extra coat or two. Using a color-compatible sealer before painting is a good idea to help keep the color even.

I have been spraying cars with all kinds of paints in the garage at home since I was eighteen. Make sure you have appropriate ventilation and, most importantly, a good respirator...