I'm with NFU and its around £500. I think that may be a postcode thing.
I keep thinking of going elsewhere - but I've had to claim 3 times since I've been driving - 2 with NFU and they were utterly brilliant. Looked after me, offered the full value straight off etc.
My experience of other companies is that the whole thing is a battle where they try and do as little and pay as little as possible.
So as it stands, I think I could get it cheaper, but I want a quality product.