You are probably going to laugh at me but I am planing to do a new paint job for my Firebird with a roller

. I know it sounds crazy but someone posted how to do this in a forum and the magazine hotrod tested it with great results for a total price of $98,00. There is a lot of work and it takes much longer than spray paint but if you have more time than money, this could be the solution.
You can read Hotrod's article here:
Hotrod.com