I have the option to buy the Panasonic L47ET5B for £310 or the Sony Bravia KDL40HX853 with 5 year warranty for £450. Any opinion on which one considering difference in cost? I'm selling my old tv and a bit of birthday money to spend. Plus with the Sony I'd sell the blu-ray player and James Bond blu-ray set that comes with it. So that's how they become those prices. Thanks.