I had the alarm on my teg put together by all DEI (viper) ACDELCO products. It definately deterred any thiefs as far as break-ins go. However, it still got stolen. I'm assuming a tow truck but I do not know the actual tactics.
I had a keyless entry system, 2 batteries, 2 horns, kill switch, extra shock sensors, and tilt sensors.
If you want a reliable system that list will geterdone. Just be careful where you park b/c its not full proof. (obviously since my car got stolen)
and DO NOT go to Buzz off. I had it originally installed there, but they are assholes- especially the owner (nsx driver) I am supposed to get my deductable for insurance payed by Viper if my car is stolen. The Buzz Off guy showed no sympathy and told me that he'd give me a discount on another alarm from him

damn dick tard.
Anyhoo, Circuit City is the national distributor for all Viper or (DEI) products so you might want to talk to them about putting something together for ya.
Sorry I wrote so much, but I hope it helps you out