Make sure to take a look at the LG OLED Panel as well... and preferably NOT in an environment like Currys et al.
If possible, go and see it at a specialist AV Retailer that can demo the various Panels in lighting conditions that mimic a "living room"... rather than the bright florescent lighting in most of the Curry type showrooms.
OLED is the natural successor and evolution of Plasma IMHO and it has a number of advantages over LCD etc.
Samsung also have OLED panels, but I'm not sure if they're at the market stage in the UK yet.