I would not buy a top spec tv at the moment - I am going to wait at least 12 months to see how it all develops.
On the other hand my friend has a �2k hdtv and loves it. I admit the picture is excellent, but I don't think it is worth spending that sort of money for the limited channels available, considering you have to pay extra to Virgin or Sky to get HD programmes.
Here is a good, short article about HDtv:
http://www.theregister.co.uk/2006/05/26/hdtv_c onfusion/
But all in all I don't believe now is a good time to buy tvs - unless you are looking for a bargain 'old fashioned' crt tv - which is still recognised as having a better picture than either LCD or plasma, unless they are enhanced by HD.