I second the polishing stick and Bare Metal Polishing compound. You can also use other polishes like Novus, Flitz or even toothpaste. Wet sand/polish with the polishing stick, then dip in Future if you don't have the polishing compounds. If it isn't to your satisfaction you can strip off the Future with Windex or alcohol and then use a polishing compound to clear it up further.
Polishing sticks can be found at you local drug & department stores in the nail care aisle. They come in various shapes and sizes.