Motion Activated Camera

I think my ex-husband gets up in my house. I want to put a hidden camera by the door of the house when it is not important that I know for sure. I need a motion activated, very well hidden and autonomous recording unit DVR that gives a clear picture and can see clearly in darkness. What can you recommenda

Well you do not want to reveal something too that your ex-husband may place like a hidden camera. Your gateway into a lounge, a lobby, is there a place where you can sit one of these frameworks spy http://www.spytown.com/picframcam1.htmla It would very discreet and I bet he never thought twice about a picture frame with a unit built in camera. Do you think this could worka There are other interesting hidden cameras here http://www.spytown.com/covertcameras.htm ... but I think we can be better. Hope this helps!