Hah, the club.. lol.. It'll give someone at most 5 mins of trouble.. Pager is definately the way to go if you are going to have good shit on your car. If it's gonna stay stock, don't even worry about it. P.S. you can find some decent no name brands out there for cheap, also, thiefs aren't as familiar with the no name brands, so that's one advantage to penny pinchin!
Oh and, the 2 way antenna, is a real goooooood deterrent, make sure it's visible.
No thief wants to get jumped by a real angry mofo with a bat.