How far are you willing to go with it?! heres some pics of my Superman game when I did it,
http://s757.photobucket.com/albums/xx217/Rodder_Haven/Arcade/Curent Projects/Superman/
I strip the cab bare, to the base particle board fix and major and some minot damage with fiberglass, some like the Ghostbusters cab I'm doing, I skim coat the surface areas in fiberglass resin and D/A or sand it smoth from there, minor imperfections are taken care of with plastic filler or body filler, bondo is just a brand name but I prefer Rage or the less expensive Dynalite, some areas I'll use Evercoats Metalglaze about (20.00 a quart right now) once it's ready I use either a regular laquer based automotive primer or a high build epoxy primer depends on the cab, lotta hand sanding and prep work finish with 400 grit and as stated before the rustolem satin black give the clasic perfect arcade finish. I have done a couple with acrylic enamel automotive paint and use a flatener to dull down the gloss, but thats not cheap so it depends on what your going for in your cab..
JJ