German promoter FKM-Events is going to host "An Evening with James Callis" this fall (September 12, 2009, at Ibis Hotel in Bonn, NRW, Germany). This will be FKM's first foray into BSG fandom, but they've hosted a dozen of these small, laid-back events with many Star Trek and Stargate guests over the past five years.
The Evening will start at 6pm and last for about three hours, with all of this time devoted to a Q&A, a photo-op session and an autograph session. Tickets sell for 35 euros, including one picture from the photo-op. There's going to be an aftershow party with a buffet (to be booked separately), where James may join the fans.
P.S.: I'm not affiliated with FKM-Events, but if you have any questions with regards to this event, please let me know.