If you have the money, look up Directed Electronics. They make VIPER and the like, as far as the car alarms go. Some have fuel shutoffs and everything already built into them. I used to have a VIPER alarm in my GS-R. It was very nice, and never had to deal with false alarms due to the weather. The part I didn't like about the alarm is that I was not allowed to install it myself. Its required that you have a certified installer do the installation, or it wont even work.