I'm not even sure if this can even really count as a guide- but here it is! In the process of designing my PC I decided I wanted my main inspiration to make a strong appearance. I wanted my non windowed panel to be a little more interesting than plain red, and needed to really bring out my theme. (Samurai) When I was working at the ford dealership nearby, I had a pal in the bodyshop paint my case with red and black- and had him mask off a piece of the panel so I'd have a mostly red part black panel.. the black is the ground, with a slight roll to it. Usually the process dictates that you promptly clearcoat on top of the auto paint, but I took the panel home, and with a can of black paint and a relatively small paintbrush painted my designs onto the side. The trick to painting with auto paint is to do it right the first time. If you have to go over anything you've already painted it will smear and show the underlying colour. The solvents in the paint are really strong, and the lower layer hasn't bonded to anything much yet. Make smooth long strokes and you ought to be alright- and it pays to pay close attention to a reference piece. Make all your strokes in one direction, no kindergarten style fill in the lines here, try to make all strokes horizontal or vertical, whichever is most comfortable for you. So long as you put the clearcoat on within a day you don't have to worry about a lack of adhesion, and you'll still acheive a pretty nice mirror finish, despite your brushstrokes being immortalized. The clearcoat bonded just fine, and with a little car polish and wax you'll be golden. I didn't have a digicam at the time of painting.. so sadly no pics of the progress- but I can show a finished product pic Hope this inspires a few more interesting designs. Skaal-tel out!