LAlarm - Free laptop alarm security software

[unixman_again]

Not sure how useful this is but you can't grumble about the price. You fasten a thin metal cable or strap to the memory stick, secure the other end to a large table or another immobile device near you, and plug the USB stick into your computer. The moment you lock the Windows screen, your USB security system is enabled.

 

LAlarm - Free Laptop Alarm Security Software -

[liveman2]

You can also get one that sounds when the charger is removed: A.L.A.R.M. - A Laptop A/C Removal Monitor v1.01 IMO this is a better solution as no additional USB is required.