[jmatta]

I've you've never done this type of work before, take it to a professional. I've had great success working with paint using 2000 grit wet sanding paper and a variety of polishing compounds. However, this is not a good time to learn on your car in an obvious spot.

You can use a product called "Scratch-X" by Meguiars which is very mild and wouldn't hurt your paint; but it may not be strong enough to remove the damage if its through the clear coat. Rubbing compounds can cause a lot of damage if not used properly; then you're painting a fender.