Handley Page H.P.46?
Excellent - except the only pic I could find (the one in your link) doesn't fit on my desktop - it ends up all squashed laterally.
Thanks
Piggy, the Cat will most certainly feature, somewhere around next June. Probably my second favourite aeroplane, after the one from two weeks ago (think 049).
Thanks for all the other suggestions too. Right now the Fred Olsen C-46 is the front runner.