Update: Price has went back up.
Forum member melsig informs us that Amazon America currently has LEGO The Hobbit 79003 An Unexpected Gathering on sale for $55.61 (reg.$69.99). Savings work out to be 21% off. Free shipping on orders above $25 and no tax for most states.
LEGO Architecture Sydney Opera House is also down to $28.79 (reg.$39.99) which works out to be 28% off. More of their hottest LEGO deals can be found here.