I am wondering if there is a progam that can take a picture using my laptop’s built-in webcam and send the picture to my email if my laptop is stolen?
Install a remote access trojan. With a RAT you can do more than just take a picture, such as track the location in real time, talk to the thief and execute remote code (such as deleting or encrypting your data), shutdown the laptop, etc. No self respecting thief is going to be using a product he just stole, much less hoppin' on skype to chat with friends. Odds are good the laptop will remained closed (that is, until it's sold), then what? A screenshot isn't much help. You need to be able to track the location of it.
Prey looks pretty good though. Read more about it here.
How To Prepare Your Laptop For A Case Of Theft
Protect And Track Your Laptop In Case Of Theft
5 Things You Can Do To Potentially Retrieve Your Stolen Laptop
LAlarm Laptop Makes Your Laptop Scream When Stolen
Prey Project -- http://preyproject.com/
Open Source and the Best Anti Theft solution .
snapping is just one of its features .
check the link for all its wonderful features ... :)