Fantastic Direct Deals via Amazon offers the refurbished Belkin NetCam HD Wi-Fi Camera with Night Vision, model no. F7D7602, for $54.99 with free shipping. That's $15 under our November mention of a new unit and the lowest total price we've seen. (It's also $74 under the best we could find for a new one today). It features a wide-view lens, infrared night vision, 720p recording, 802.11 wireless, built-in microphone, and up to 25 fps. No warranty information is provided.
A close price: Belkin offers it for $55.99 with free shipping via coupon code "NEWYEAR20". This offer comes with a 90-day Balkin warranty.