I'm so sorry to hear you were burgled. Having had only my car stereo stolen, I can only imagine how it would feel to have someone actually in your home.
I am told there are few greater break-in deterrants than a loud large dog. I don't know if that would fit into your lifestyle, but if you can manage one, it may help. Also, I have heard of alarms and services for apartments. You might want to check into something along those lines.
On your musical taste? :D
How much do you really *want* to have in common with a criminal, anyhow?? ;D