MH Door & Garage Locks

Apart from the obvious security like, alarm, immobiliser, tracker etc, what other security devices do you use to reduce the risk of break in through the door & garage?

We are taking receipt of our MH at the end of this month and this is an area I am concerened about and was wondering about other people's experiences with this.

I was looking at the Fiamma Safe Door lock system as a starter.

http://www.fiammastore.com/Fiamma-Security/Fiamma-Safe-Door-Frame-Security-Locks-x-3

What other security devices should I look at?

Thanks.