I think my reaction goes without saying.

It was seeing Sidious with a 'sabre that got me, but I guess that any guy capable of training a monstrosity of the likes of Darth Maul can kick some serious butt himself!
I'd recommend you all take a peek at the video game trailer, too, on the
Star Wars website - there's some of Count Dooku in there! I can't guarentee that any of it is true to what will happen in the movie, but it looks fun all the same.