This is off topic from my camaro but you guys are always so much help thought I would ask. I have a car that I am getting painted and I can't wrap my mind around how it will look before I pick paint. So I am in need of a download or program where i can put different designs and maybe two tone it and make it look good so I can see what it will look like with different colors before I mess up and put colors on it I don't like. I was hoping there was a program i could download a pic and change colors and designs thanks

Not free, but try this.
http://www.hokdigitalpaintbooth.com/

See if they have your car in their gallery. If they do, it's probably worth the $50 to mess around with it.

I saw this being used by one of the guys at the FFR forum here:
http://www.ffcobra.com/forums/showthread.php?t=225772

Find a friend who's good at photoshop. If I have the time I can fool around with an image for you.