Before upgrading I suggest securing the home first. Do some you research and buy some quality double cylinder deadbolts on the doors and windows. Perhaps weld metal bars to cover your windows and install trigger alarms. Perhaps a Macbook Pro could possibly a better replacement because you can easily hide it in a well secured and hidden safe. All this probably won't stop a determined criminal but it will add several layers of security and possibly deter him because it takes too long to do his deed and thieves are always under time pressure on the job.