[Air-L] Second Life real-time streaming presentation question

Hi all- I am doing a presentation on Virtual Worlds for the annual American Psychiatric Association. I am debating whether to do it using Second Life, in some fashion. Would be a nice tie-in and would illustrate many of my points. One option might be to stream the live conference presentation into Second Life and then take questions from Real Life participants AND Avatars in VL. Anybody have any experience doing this? Is it difficult? Where does one get the "conference room" in 2nd Life? I would welcome and advice or input. Thanks, Jerald Block, MD