ERR THEIVES...security question

I parked my car in manhattan and came to see my window severely scratched and window seal indented, whicih to me seemed pretty indicative of an attempt to steal my car. I'm starting to get paranoid of people stealing it. with this said anyone recommend any security which will alarm if anyone tampers with the window area ?

Aside from one which incorporates a mercury switch (sensing vehicular movement of some kind), I did have a high-end alarm system in my Ferrari back in the late 80s which in fact sensed anything which entered a preset perimeter of the vehicle. It would warn those who entered the perimeter with verbal commands and announced with a warning that the alarm would activate within a ten second time frame. I believe that the alarm system was in fact a combination of two alarm systems...one being a 'Viper' system, yet the other name escapes me at the moment. Although I and others did hear the warning 'go off' a few times, I never did experience any type of vandalism/damage/attempted burglary/theft of any kind. BTW, although money is/was not a consideration, I never/have ever allowed any of my vehicles to be valet parked, as it 'keeps one less hand out of the cookie jar'...so to speak.   

.YEAH I HAD THAT TALKING ALARM ON MY integra i got it on ebay for $20 bucks is pretty cool i know a place here in brooklyn where you can get a cutoff switch that works with a combination of buttons im  not sure if you will be able to use the remote start but i had that in my integra and i had at least 15 people try to get the car to work and they coundnt do it for my integra back then i paid $250  im pretty sure they will ask for more  i will call them up and ask them how much will they charge to do it on a hummer

thanks guys....im really looking into the viper

Get a Clifford alarm.

i also had the talking alarm on a toyota lowrider back in '88