I bought a wired one last year and it's excellent. 2 camera's and all the bits and pieces came to just over £100 and provided by a mate. Then had to buy a hard drive recorder until from maplins. Got it half price for about £150. Was getting a lot of vandalism at a place i was working on so installed teh camera's to try and find out what was going on.

Nothing!!!!! But guess teh little s**t's saw the camera and left the place alone after that. Plus the night vision was excellent, i was amazed how well it cld see in complete darkness