Walmart.com currently has three LEGO sets discounted including the just released LEGO City Police Water Plane Chase set. In addition, they also have the retired product Chima CHI Raider heavily discounted as well.
-63% off: Chima Chi Raider $14.81 (reg.$39.99)
-33% off: City Police Water Plane Chase $19.97 (reg.$29.99)
They are out of stock online, but you can pick them up at your local store (subject to availability). In addition, both Amazon and Wal-Mart have 70725 Nindroid Mech Dragon on sale for $59.98 (reg.$89.99).