Hey, I'm also applying for fall 2013 and anxiously awaiting a decision!
I asked someone in admissions about the acceptance rate and if my notes are correct, about 100 people applied last year and 63 were accepted, but it depends more on how many qualified applicants they have more than a definite quota. The info session recording on the website said the acceptance rate is about 60%, for what that's worth.
I'd be interested in a Facebook group.