Altatac via Rakuten offers the D-Link 802.11n Wireless Internet Surveillance Camera in White, model no. DCS-930L, for $30. Apply coupon code "VISACHECKOUT10" and check out via Visa Checkout to cut the price to $20. With free shipping, that's tied with yesterday's mention as the lowest total price we've seen for a single camera. (It's a current low by $13.) This security camera connects to your wireless network to provide remote monitoring over the Internet. It features a native resolution of 640x480 and 4x digital zoom.