Excellent. Thanx guys. Exactly what I am looking for. Couple more tech questions?

What is recommended medium? I have ancient Sony camera, so am going to upgrade it in anycase. Is it better to go for MiniDV, HDV (HARD DRIVE) OR DVD, other than cost....

Seems HD camera is similar to DVR, but added bonus it can take vid as well? What about fitting a 4 channel DVR?

I will be fitting to a blik so wires are a pain in @ss as I would have to open wing/fuse to fit. Thus what are the wireless options? I have done CCTV installations on ground at some of our sites so assume it can be done technology wise, but I need to know what the cons are? Will there be interferance and is quality same?

I have only every used in static apps, where focus is on 1 point (safe, deliveries, entrace or cash office door for eg). What range is optimal for the cigar cams (lens)? What is best resolution to go for?
So many questions
Ta.
Seems the key is the medium you recod it on (Camera, DVR, PC?). Provision has been made for Laptop to be installed in plane. Is looking at USB and using PC to record the media an option?