I recently bought a JVC 32R25EKS from "Shopathills" for £589 including Vat & delivery, which I thought was a very good price. They delivered in 2 days, and their customer service was very good (prompt replies to emails). I suggest you check them out on "Dealtime".
I am very pleased with the TV, although it took some playing around with the colour controls to get the best picture. Having said that, I am sure that is true of most sophisticated w/s TV's.
Best place to buy a tv is John Lewis because they offer a free 5 year warranty and have an excellent reputation for customer service. They will price match anywhere that has a shop front with the goods in stock and priced on the shop floor. Use www.pricerunner.co.uk to find suitable shops with cheap prices. Electocentre (Digital Point), RGB Direct, BOS Electronics, Krish AV are 4 possibilities that spring to mind. Electrocentre has came up trumps for me on 2 occasions.