anyone know roughly how much it costs to replace the lock on a car door?

[TheArmadillo]

Car got broken into today. Forced passenger door lock (luckily door not even scratched). Is the only damage done.

Anyone got a rough idea of how much it costs?
The excess on my insurance is pretty high so need to work out whether it would be cheaper to pay myself.

TIA

When our key (one of those that points an shoots) broke it was over £200 for a new key as it all had to be reprogrammed?

thank god mine isn't then.
driver's door is central locking, but passengers isn't.

I am hoping it isn't much more than £100 (fingers crossed).