Hei, Andrew -- YES and YES: You can put it in the gallery and 3DBrush was used only for the normal map (skin pores, wrinkles...take a look at the images to see the original head).
I have just tested the software for specularity and I'm REALLY satisfied with the results, the visual feedback is very nice (environment map)-- definitively I'll use it for the Specular map.
As far as for color texturing, I will give it a try (but I tell you from start -- I'm really addicted to BodyPaint); 3DBrush does not have a render capability... Its hard to understand whats really happening with the colors unless you render it! (this may be a REQUEST ; or have a "render external" option just like silo -- see image-- I haven't used it but it could solve the problem, there are some free renderers out there now, Gelato,Kerkythea, 3DLight...you could study the situation!)
Thanks Mike -- as I said, I was juts playing around with the software. I chopped off a pice of the face and threw it in 3DB. Im going to redo it with the original UV's (see image), render with SSS...