Where can I get a really nice Wooden front door that keep the heat in?

[LaurieScaryCake]

I've had a quote for a PVC one, all double glazed and would seal the heat in very well - but I'd really like a wooden one.

I don't want to go to a salvage yard and then get someone to do stuff to it to insulate it and then get someone else to do locks - I want someone to do all of that at once.

I've been looking at this site seems to have a wide price range.
www.realoakfloors.co.uk/wood_doors.php