Unlucky mate had someone who I knew broke into my house last week as well. Unfortunately for him I was in at the time and gave him a beating of a life time. Simuler thing happened to my mate a few years back but with his PS2.
What he did was go to GameStation, Game, Cash Converters, Cash Generator basically anywhere you can sell your stuff to. He handed the serial number in to all of them. A few days later the police called telling him they found the guy who broke in he tried
to sell it to Cash Converters.
So hand your serial number into ever shop that takes 360s in like CEX, GameStation ect.