http://www.ebay.com/itm/Devilbiss-TE.../390763946971?
Here is a good quality gun. It really depends on how many times you are going to use it ect. i like the tekna
http://www.ebay.com/itm/2-Devilbiss-...-/390830447889
here is a setup that will allow you to shoot base/clear and primer with the different size fluid nozzles.
it is really about gun adjustment and like anything else experience. if you do not paint alot i would not spend 500-600 dollars for a gun. go to refinishnetwork.com. that is a good site that will be able to help you pick out a gun.