I've been thinking about Remote House Central locking for years. I've had it on my car now for a long time but nobody seems to have developed a system for the house. That is until now. I visited the Smart Home show at the NEC last weekend and found a company exibiting there called diy2go.com. They sell a DIY fit wire-less battery opperated remote house central locking system that fits your existing doors! Instead of keys you now unlock your door with a keyfob! Why didn't anyone else make this years ago! You can find loads more info at www.diy2go.com. I'm deffinately ordering one, it even lets you know when locking your doors if you leave the back door open! Very useful for some one like me who would forget his head if it wasn't screwed on.