Blutek via eBay offers the D-Link 802.11n Wireless Internet Day/Night Surveillance Camera in White, model no. DCS-932, for $39 with free shipping. That's a buck under our mention from March and the best deal we've seen. (It's also a current low by $16.) This security camera connects to your wireless network to provide remote monitoring over the Internet and smartphone apps. It features a native resolution of 640x480, day and night vision, and compatibility with the mydlink.
Stocking up? You can instead opt for a 2-Pack for $75 or a 3-Pack for $115.