If you've ever toyed with the idea of adding some kind of security camera to your home - whether to look out for burglars, or simply keep an eye on pets when you're out at work - this is the deal you've been waiting for.

Although it's possible to use a standard webcam as a security camera, this is a poor solution. For one thing, you'll have to leave a PC running all the time, wasting loads of energy and pushing up your power bill. What's more, the camera will be tied to a computer by its USB lead. A better way to do things is to use a wireless network camera: these include a tiny computer and connect directly to the internet via your wireless network and broadband. And, as they're wireless, these can be easily positioned almost anywhere.

The D-Link DCS-2120 can be used to watch a live video stream of your home from any internet-connected computer, or even some mobile phones. It has motion detection, too, and can send you alerts via email. The full price for this model is £200, but we've found a store selling it for just £80 - that's a massive £120 discount. Click the jump for details.