Had their special offer sales leaflet land on this morning. They're obviously clearing the decks for the 2011 model and selling off this years stock - from what I can see you get tent, carpet, footprint groundsheet and front awning/extension for £150 (sorry for gratuitous bolding, but I'm totally 
).
RRP in the summer was >£600 (we know - we bought one...) so it really is a bargain. We found it to be a very good tent - light, pretty easy to put up, easily enough space for 2 adults and a 3 yr old for 2 weeks without playing sardines, and front extension worked really well.
(Seriously tempted to buy one at that price anyway and Ebay one or t'other 
)
If you do plan to go, though, they do say that there will be just 10 per store, doors open 10:30 on the 26th :)