Active Directory Disaster Recovery BOF at TechEd Ranked Most Popular

I'm moderating a Birds-of-a-Feather session here at TechEd tomorrow on Active Directory, and I found out yesterday that it has the highest number of registrations of all the BOF sessions. I was expecting 40-50 people, and apparently almost 350 have registered. Which is not to say they're all going to show up (actualy attendence runs anywhere from 30% to 120% of registration). But 350? I wasn't expecting that. Should be fun!