Staples offers the Logitech Z506 5.1-Channel Surround Sound Speaker System, model no. 980-000430, for $69.99. Coupon code "86069" cuts it to $54.99. With free shipping, that's the lowest total price we could find by $15. Features include 75 watts RMS power, down-firing subwoofer, 45Hz to 20KHz frequency response, and 3.5mm audio input. Coupon expires October 20.