GGG Ping.
I know Dr. Zahi A. Hawass thinks they were built by willing construction workers whom were very well treated and very well paid. Heck he makes it sound like a day at the beach!
But if you look at their illustrations of construction going on, it looks far less pleasant that the good Dr. Hawass would lead you to believe.
Maybe for their general construction they used slaves but for the pyramids they used voluntary workers...;->
ping