On a slightly related note, how about this:
Did that yesterday for Microsoft Flight Simulator 9 (AKA FS2004). The plane is a
Project Open Sky 737-800. Used Photoshop to make the paint. I still need to do some work... the text on the tail is a bit squashed, I need some Boeing stuff (just below the rear window, it should say "BOEING 737-800"), and I need to fix the engine alpha channel so it's not completely shiny. Also, there are a few antennae that aren't painted, so I either need to replace the visual model with something that has matching antennae, or paint them.