At that sort of size, I'd suggest you go and look at a few and decide if you prefer Plasma or LCD/LED.
I get annoyed as hell by the digital artifacts you get on LCDs, especially on the grass when watching footy on the TV...some people seem to pick up on it more easily - I must be one.
But all my LCD TVs do it (Panasonic & Samsung) whereas my Plasmas don't.
Plasmas also have better black levels...so if movies are your thing, maybe that will sway you.
I have Panasonic & Samsung LCD TVs and Panasonic Plasmas...and to me, I'd pick the Panasonic Plasma every time.
You'll know what looks best to your eyes with a quick look though.