Bryan,
Money is always a driving factor. But If you look at your local box store or your Sam/Costco Store they carry computer home security camera systems. Run typically $199.99 to $500.00. My neighbor has one that has a dog sound that seems to have a dog running room to room. You can start small and build up on most. Even look at a deer camera to use in your front and back yards.
As far as PII, you will need to find out about your local laws. If you're in Va here is a link for a update pass in
2013.
If you are concerned over PII. Then start looking at your Credit report daily. You will have to pay for a service for this. You could get one of those personal information protection monitoring like LifeLock. But I don't think you need this now.
Also home alarms typically don't do anything for your house unless you have a neighborhood watch/ patrol to come to your house. Everyone I have every known to have one monitored, it still took cops 30+ plus minutes to get to the house. But the noise sometimes makes them run away.