dont worry about tinting it dark for security, if people want to see whats inside they still can.
get yourself some securafilm its 35% and is about 5 times thicker than normal tiniting, when someone hits your window with a bat or whatever it just cracks and stays in position like bulletproof glass.
its not that expensive either around 500 for the whole car
also get a good quality steering wheel lock. mine is huge, bright yellow, covers half of the wheel and made entirely of steel, a real visual detterant
hope that helps