Lorne Peterson, ILM modelmaker for Episode III, has a new book coming out this November that appears to be in the same vein as last years Trisha Biggar book, 
Dressing a Galaxy. 
Sculpting A Galaxy: Inside the Star Wars Model Shop will retail for $50 in a 
regular edition, and $295 in a 
deluxe edition. Much thanks to Tim for the heads up.