Repaint/surface speaker cans

[pmoomba]

I have some liquid audio speakers like the attached. Someone found a good reason to put some duct tape on them and when it came off it ripped off some of the paint. I'm wondering if there's a good way to repaint or resurface them? I'm not really concerned with retaining any lettering/decals as long as it looks reasonable enough.

Is this something that I can just sand/clean and spray paint? Any special considerations or paints? (ie, any normal outdoor spray paint or should I pick up something like this? http://www.amazon.com/Tempo-Mercury-.../dp/B0000BYM8G ).

Any other good ideas? The speakers themselves are fine so I might also consider just getting new cans if that was an option and anybody knew where/how to get them.