Thanks to pellmelody over at torri_higginson for the news. Apparently Torri Higginson had to cancel out of the London Film and Anime Convention as she's busy filming an episode of the top-rated CBS crime drama, CSI: NY. No word yet on the episode, but it's very likely one of these two:
#406 "Boo" or "#407 "Commuted Sentences"
The CSI franchise seems to be a great place for former Stargate actors to keep working. I mean, Michael Shanks, Ben Browder, Joe Flanigan, Carmen Argenziano, and Corin Nemec have all appeared on one of the series.