I found a new site for robotic parts. They appear to have everything including heads with both eye movement and being able to mouth words.
They offer so many things that it takes a while to look at it all but in my opinion it is worth it to those who want Hal to have more than just a voice.
Here is the link: http://www.e-clec-tech.com/robotsstuff.html
Bill
Very nice find dude[8D]
-Seven-