The repubs may win back the Sneate in 2012, but I don't see them taking back the house.
I see them not only taking back both the Senate and House, but the House in convincing fashion (over 100 seats changing sides). And, I see the political tsunami continuing in 2012, to the point where the Republicans have a fillibuster-proof majority in the Senate, and close to (if not more than) a 100-seat majority in the House. The lefty Dems have overreached, and the American public is pissed.