I only can say - as an old Star Wars fan - it’s just great: rendering for Episode III - Revenge of the Sith will happen on Windows XP and AMD64. Just click here (another German announcement here) to get the info :-))
Some other infos about Star Wars Episode III:
http://www.starwars.com/episode-iii/
http://www.killermovies.com/s/starwarsepisodeiii/
http://movies.go.com/movies/S/starwarsepisodeiii_2000/