Anybody use one of these ? I have been thinking about getting one but as usual looking on flea bay there are so many . Am looking for something I can hard wire and leave so not to big ,I am not to bothered about the screen I can watch playback on my lappy . Then I came across some apps for my mobile not sure if these are a better option one site did say it doesn't do the phone any good continually recording every time you go out ??? so may be a stand alone one would be better ? thanks for looking