Allison Cameron is leaving House in November 2009. She's taking the show's moral center with her.
UPDATE: She's been booked to return in the spring of 2010!
Dr. Cameron: House doesn't believe in pretense. Figures life's too short and too painful. So he just says that he thinks. Dr. Foreman: "I say what I think" is just another way of saying "I'm an assho"...