"Beat someone up " !!! What a dreadful suggestion, hadn't occurred to me for a minute but I'll bear it in mind as last resort.
Just been talking with the crime prevention officer and he is not allowed to suggest which system/installer to use. Think the vibration sensors on the windows makes good sense as it will trigger the alarm prior to any intruder gaining access.
Thanks for your comments folks, always rely on support from people posting here.
Hope I will still be riding when I'm 132 as Vman suggests

[Edited on 27-2-2004 by Paul James]