We just joined your community and love it - two of us are sharing the account - a seven year old boy and his Mom near Buffalo, New York. After attending a maker faire, Carl (the boy) asked if we could build a lifesize R2D2 that would move, spin his head, "talk", recognize him as in "hi Carl", follow him around and follow voice commands ("Stop R2").
I (Carol - mom) have been doing tons of research and am teaching Carl soldering by working on simple electronics projects. I joined astromech.com and began gathering all the information I could over the last four weeks.
I ran across EZ robot about a week ago and thought it looked like a great choice for our project! WE began looking at several of the projects on this site and are amazed! That's it for now - we will continue our research and early work and keep you posted on our R2 build.
The blank dome (R2's head) is on it's way and we are saving our money. Carol and Carl