Which alarm do you recommend??

HELLO EVERYBODY !!
I am gettng all the greddy turbo parts in these 2 weeks, and I am going to install the turbo myself !!
Anyways, I want to get an alarm for my car!
My town isn't a big town.. but ppl just keep saying ppl likes to steal cars with good mods.. but i am afraid...
i don't want to spend too much money on the alarm..
Is there any good alarm that you guys recommend?? how much are they??
If I have a turbo in my car, is that ok to have a starter with my turboed car??

Thanks