In the Hyperspace celebrity forums there was a chat from Lucasfilm with Nick Gillard about Episode III and the movie's fight sequences:

The person asks if he can you give everyone one nugget of information that we don't know to keep us SW geeks happy for the next few days. Gillard replies that "he could, but to do so would risk grievous bodily harm from Rick McCallum."

Funny! Talk about it in the forums - other cool tidbits include that Nick thinks it is possible for Ep3 to have a PG rating and his Jedi character's name is "Cin Drallig", his real name spelled backwards.

Moopz also forwards us this note from an unrelated source:

I don't know if anyone else has reported this, but I was looking through my Insider and in the Shadowfeed Newsletter, Ventress claims to speak on behalf of the Count and the General. Could this be Grevious?