Sony Centres - Free express delivery http://www.sony.co.uk/product/t32-ex-series/kdl-40ex403.
I know these have gone cheaper recently, but still a very good deal with the 5 year guarantee. Picked up mine yesterday and they had a stack of about 10 in Lincoln branch.
The essential Full High Definition experience
40" (102cm), Full HD 1080, Wireless LAN Ready, LCD TV with digital TV tuners & 4 HDMI™ connections
Experience TV, movies & games in amazing Full HD
Enjoy music, photos & videos with HDMI™ and USB
Easy Wi-Fi access to online content and services
Save space with a built-in Freeview HD TV tuner