I considered black chrome plating but ultimately went a different direction and did powder coating.  Note that this particular finish has some metal flake to it, but the effect is extremely subtle and you can't really tell without sunlight.  I intentionally flashed a couple of pictures to make the metal flake stand out so you can see it, but I assure you, its much more subtle in person.  This machine was a TPF in March so some of you may have seen it there.