Hey Todd,
For once, it looks like I'm giving you some advice. :lol I used to polish metal far before I started with paint, and I did it the hard way (Sanding bare metal, starting from as low as 320 grit, working my way to 2000, and finishing with a polishing cream). That method worked well, leaving most parts I worked on looking like they were chromed. For the record, my go-to LSP (polishing cream) was always Happich Simichrome polish.
Like some others stated, Caswell Plating has a myriad of products for you to use, as well as a metal finishing forum. The members are knowledgeable, and there are several threads with step-by-step tutorials for you to follow. Hope this helps!
- Marc