Sorry to hear about your break-in.
I too have had my baby broken into.
They stole all my hunting gear, all my gun clips, my shooting bag, my dvd player, my headrest monitors, my brand new cabelas boots, and cut up my seats. The insurance covered most of it, but it still does not make me feel any better.
I do not have any faith in alarm systems anymore. The only reason I would get another alarm, would be for the convenience of remote start.
I believe the only way of protecting your property is thru home defense.
The intimidation factor is always a good one.
Try and get to know as many kids in your neighborhood, and let them know that your vehicle is being randomly monitored all night long by an armed person.
Play a game of "is tonite the night that he is watching?".
Even if it is younger children you talk with, they have older brothers, or older friends.
Make friends with all your neighbors, and keep an eye out for each other.
Fortunatly for me. I have a neighbor that works the night shift, and he is up all night, on his days off. He is my sentinal.
I keep an eye on his house, when I am not working.
Good luck...
Ric-H2