Microsoft Mouse & Webcam Mobility Pack 3000 for $7.97. Shipping is $6.95, so the total comes to $14.92 shipped. Here is a screenshot for your reference. It includes LifeCam NX-3000 and Wireless Laser Mouse 6000. Most places have it for about $21 or more.
It is now out of stock. Congratulations to those able to get in on it.