Newegg offers the TRENDnet Wired Security Camera, model no. TV-IP572P, for $59.99. Coupon code "EMCPDHD54" cuts it to $39.99. With free shipping, that's the lowest total price we could find by $18. It features 1280x800 resolution, 2-way audio with built-in microphone, Ethernet connectivity (for both power and data) microSD card slot, and a free app for smartphones.