Newegg has the Polk Audio New Monitor 15C Two-Way Center Channel Loudspeaker (Black) Single for $70 shipped as a Shell Shocker deal for the next 4 + hours:
http://www.newegg.com/Product/Product.aspx?Item=N82E16882290273
http://www.newegg.com/Product/Product.aspx?Item=N82E16882290273