Tell me about your spray equipment.

I just received the last of the decals I needed, so I'm planning to paint my wife's Peugeot this spring. I've got a Devilbiss JGA-502 with a Sharpe cup. My compressor is a 5hp with a 30 gallon tank. I have a water filter in the air line. I also have a Badger 200 air brush with its own little compressor. I hate to buy any more equipment, but I'm afraid that the big gun puts out too much paint and the air brush puts out too little. Should I be looking for a detail gun? Most of my spraying experience has been with varnish on wood.