I'm going to hook you all up with a fun little tool for doing custom heads.
It's free and that is right in my price range.
http://www.looxis.de/looxis-faceworx-tool
It does run on my Win 7 64 system but I can't save then reload the .fwx project files. So it's a get it all done first time or start over deal.
I'll try it on my old XP system and see if that helps.
Other then that little glitch it's a fantastic tool for heads once you blend it with other tools and re-scale the exported obj file.