What kind of paint job are you looking for? Just a basic paint job where you keep the same color? Do you want the door jams and stuff repainted? Switching to a new color?
A basic paint job will cost you anywhere from $1000-$1200 more than likely depending on how much prep work is involved. Of course, if you're going to be painting the door jams and everything, it'll be more, and to change the color it'll be rather expencive since the whole car will have to be painted to look good... trunk, doors, door jams, under the hood