We were there one weekend last year and it was great fun! Arrive before park opening and you'll get to see the Stormtroopers open the park...they were very funny. We headed straight to Star Tours so our ds could line up and hope to be picked for the Jedi Training Academy. We saw the little "intergalactic Regis and Kelly" show which was very amusing and then my son was chosen to do the Jedi Training Academy. He was trained by a Jedi Master and then got to fight Darth Maul...along with about 20 other kids. It was great fun and the kids get a certificate and last year they handed out a prize too.
Dh and ds made sure to get lots of photos with characters...Boba Fett was particularly amusing as he made those posing for pictures get into all kinds of funny poses, as if he had just captured them. And Darth Maul remembered my son and backed him into a corner for his photo.
There was a motorcade with the guest actors that we watched...and also some trivia games and stuff that my dh and ds didn't sign up to try.
Have fun! We definitely plan to return for this someday!
Here are some pictures:
http://www.imageevent.com/woodturtle/starwarsweekend