With the cctv stuff, dont buy wireless as if you live in a normal suburb you will get a lot of intererence from stuff like people using microwaves and stuff, hard wire all of them, i found Jaycar to be the place to shop as they have all the connections and camera's all on the shelf but are a little pricey. With the alarm i think they are a waste of time and money, as I use electric fuel pump, i have a hidden tockle switch that turns on and off the pump, so yes they can start it and drive in but only till the fuel runs out, at the end of the day if they want ya car they will get it and all you can do is make it hard for them..