Jeweler's Rouge with a buffing wheel is what you want to use. The red stuff will likely get you the results you want but if you really want to over do it you can follow it with green and finish with white.

You will need a buffer like this.

http://www.grainger.com/Grainger/DEWALT-Right-Angle-Polisher-4LD98?Pid=search

Iowa80 has kits and supplies

http://www.iowa80.com/DirectionsWEB/webcart_category3.php?catid=BUFFKITS

Kevin