This is the same offer as detailed in http://www.hotukdeals.com/deals/ps3-slim-console-159-99-instore-entertainment-rights/882327/
but it is now active again.
On the previous deal I got a 250GB Uncharted 2 PS3 Slim box for £159.99 and they also had 160GB Slim and 40GB Fat for the same price.
I was instore today and "limited stock" available on 160GB version. Mine was "water damaged" but the edges of the box were just a little scuffed, absolutely immaculate inside, brand new.