Amazon offers Prime members the Microsoft LifeCam HD-3000 Webcam, model no. T3H-00011, for $25.94 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.25.) That's the lowest total price we could find by $4. This Skype-certified webcam features 720p HD resolution, a noise-cancelling microphone, TrueColor technology, and universal attachment base.