Here is a web enabled deadbolt locking system that was featured on Tool Monger a while back and you can pick up at your Lowe's for about $200.
I am just not sure if I can bring myself to implement this in my own home, but I do love the idea. I think the break down for me is that it has a number pad backup. I just don't want the number pad (no matter how secured they believe it to be) as I believe that it is crackable in a given time frame, and that makes me nervous. Unless this system logs bad attempts and then sends me an sms alert about the failed attempt, I just cannot support the number pad being on the outside of my house.
