The first one is a HD TV and the second one has 3D... Is 3D something you would use?
With a big purchase like this it may be worth signing up to Quidco or something like that and seeing what places offer cashback.
I recently bought an LG 42 inch Smart TV from Very.co.uk and got 10% off my first order with nothing to pay for a year - Interest free too! Plus we got a further 10% off through Quidco so I think altogether we paid £380 for a £470 TV.
You could get something like this
http://www.very.co.uk/samsung-ue40f...tv/1271288655.prd?searchTerm=samsung-smart-tv
and get 10% (£50) off your order and a further.... 7% off through Quidco and not have to pay it all in one go giving you a bit of freedom financially....