Actually, I "did" want matte black. As I have matte black finished wheels on my M3 and Mini Cooper...anyway, after checking out the HRE sites for P43, I should just stick with what HRE actually offer. Their site doesn't say much about the finish, but other sites that carry HRE called this satin black finish. I guess shinier than matte, but not exactly glossy (I don't want glossy black).
Take a look at the black ones below:
http://www.hrewheels.com/wheels/monoblok/porsche/p43/
Anyway, let me call around and see how much to do this. If this costs over $1k, I think I might just sell the P43s and get something else.