I am FINALY DONE with my "Realistic Portrait" series over at Blender Cookie! This series covers everything: Modeling, Sculpting, Texture-Painting, Clothing, SSS shading, Particle Hair grooming and styling, and Compositing. I'm honored by the positive feedback it's received from the community - It's made all the effort worth it! Thanks to everyone who's watched it.
I think I'll refrain from creating human heads for the foreseeable future =)