World Wide Stereo offers the Able Planet Noise-Canceling Headphones, model no. NC300B, for $99. Coupon code "WAREHOUSE" cuts it to $56.99. With free shipping, that's $3 under our November mention and the lowest total price we've seen for these headphones. (It's a current price low by $18.) These headphones feature an adjustable headband, in-line volume control, LINX audio technology, 20Hz to 20kHz frequency response, and more.
A close price: Blinq via Buy.com offers it for $57.59 with free shipping.