Statistically, most burglaries are crimes of opportunity, and a vast majority of them are committed by juveniles and dopers.
Unless you are a high profile target, most of the average scumbags will pass you by if you take even moderate precautions, most of which have already been discussed.
If you happen to be on the upper end of the target spectrum, then use some of that cash to harden the target and rest a little easier.
I happen to like the remote surveillance features on some of the alarms today. Not only does it notify you and the police, but you can see what's going on at the same time.
CCTV, remote, battery backed systems are worth their weight in gold in the investigation, apprehension and prosecution of burglary suspects. But make sure it's either off site, or secured where it cannot be taken or tampered with like happened to a buddy of mine (a former LEO at that!)
As for blogs, yes, despite what some think, many criminals do read. The chance that they're going to read a boating blog, and mine or your in particular, is still very minute. Believe it or not, quite a few of the burglars we have arrested in the past, got their targets from reading the obits.
It got so bad for a while, we started suggesting that our officers consider scanning the obits prior to their shift for potential targets in their AO.
While still not a huge concern, face it. Blogs, Facebook, Myspace (is that even still around?), twitter, all have the potential for use in casing a particular location. If you're name is on the blog, I can probably find your house.