There are all sorts of reasons you might need to record the goings on outside your home. Maybe you have an annoying neighbor that lets their dog crap on your yard or maybe neighborhood kids keep ringing your doorbell at 2am.
What you need in instances like this is a camera like the Swan Security OutbackCam. The camera is a self-contained security device that can record video to an integrated DVR. The camera has a 2MP resolution and can record color or B&W still shots and video.