Newegg offers the TP-Link N300 Wireless Network Cloud Day / Night Camera, model no. NC220, for $39.99. Coupon code "EMCEGFN76" cuts it to $29.99. With free shipping, that's the lowest total price we could find by $10. This camera features email or FTP notifications triggered via motion detection, 640x480 resolution, remote viewing via an iOS or Android app, night vision, and a built-in microphone.