SciFi.com is offering fans the chance to ask questions of the cast. You'll need to be a member of SciFi's boards to ask but here are the links (updated Sep 28th as SciFi changed the links to split them on SG1 and SGA boards).
Joe Flanigan
http://forums.scifi.com/index.php?showtopic=2288653
David Hewlett
http://forums.scifi.com/index.php?showtopic=2288652
Jason Momoa
http://forums.scifi.com/index.php?showtopic=2288654
Jewel Staite
http://forums.scifi.com/index.php?s=956e635bdfdadc393c848b9146b09644&showtopic=2288645
Amanda Tapping
http://forums.scifi.com/index.php?s=956e635bdfdadc393c848b9146b09644&showtopic=2288651
Also, update on TORRI HIGGINSON's "NCIS" appearance. The following is from a CBS press release posted on The Futon Critic.
WHEN DUCKY DETERMINES THAT ONE OF HIS RESEARCH CADAVERS WAS THE VICTIM OF MURDER, THE NCIS TEAM UNCOVERS A WEB OF CRIMINAL INTRIGUE, ON "NCIS," TUESDAY, OCT. 16
"Identity Crisis" - Gibbs and his team identify a cadaver, mistakenly tagged a "John Doe," as a career felon with ties to a criminal mastermind capable of erasing unsavory pasts, on NCIS, Tuesday, Oct. 16 (8:00-9:00 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
FBI Special Agent Courtney Krieger: Dorian Brown
Dr. Jordan Hampton: Torri Higginson
Shannon O'Hara: Nikita Ager
Robert Graves: Joe Egender
Navy Lt. Carl Greer: Emerson Brooks
full release at http://www.thefutoncritic.com/listings.aspx?id=20070925cbs03