I have 1080P HD cameras all over, a new 3G battery backup monitored 24/7 security system, on top of that i signed up for a private security company patrolling the area and visiting my house few times a day and (always the best part for last) a big mean dog outside.
I sure hope this will stop them from coming after me again.
If professional thieves want something they will take it regardless of the security system you have. Thieves recently struck safety deposit boxes in London and got way with 300 million in jewels. They had all the top security systems.