Yeah I'm leaning towards the black too, it's a close call though cause the copper looks really cool at certain angles.
It is however a lot harder to work with than the black as its fairly flimsy compared. So I'm thinking of possibly changing the copper one over to black tomorrow.
I'm looking at both images full size, and the copper is pretty cool. What is that material? Reminds me of something used on a costume in the original Star Trek series (i.e., it was "space age" in the '60s). It's harder to see the black material. What did you use for that? I think the reason I like the black is that it makes the grills pop out more visually.