Metallic paint for Iron poles

I got some iron poles that I'm going to use indoor for a structure. Rain shouldn't be a problem, it may get a little wet from our irrigation system, but the aesthetics of the thing are pushing the structure toward being aluminum or metallic in color.

Wondering if anyone had ideas for how to paint it. I'm assuming most or all of the metallic rust-prevention options are full of toxic gick.

Thanks,
William

Would something like this do?
http://www.greenbuildingsupply.com/All-Products/Paints-Coatings-Paints-Primers/AFM-SafeCoat-MetalCoat-Metal-Primer

Found a local supplier of non-toxic paint and they do metallic anti-rust. Yay.