Update: Deal is dead now.
Amazon US currently has the LEGO Pirates of the Caribbean 4184 Black Pearl on sale for $77.49 (reg.$99.99). Savings works out to be 23% off. Free shipping and no tax to most states.
They also have Bounty Hunter Assault Gunship further reduced to $31.79 (reg.$49.99) which works out to be 36% off. More of their hottest LEGO deals can be found here.