Newegg offers the Foscam C1 Indoor 802.11n Wireless IP 720p Security Camera 2-Pack, model no. C1B, for $69.98 plus $5.80 for shipping. That's the lowest total price we could find for this quantity by $44 and the best per-unit price we've seen. They're designed for indoor use and feature remote Internet monitoring via web browser, 720p resolution, 115° super wide angle lens, IR-LED night vision, and passive infrared (PIR) motion detection with optional alerts. They can also be controlled via smartphone.