yes
and LCD is cheeper, and a Plasa will have a better responce time, due the nature of the way they display their pictures.
I would suggest craigs idea, but i would choose Richersounds in soton, they have a large wall of TV's, both plasma and LCD mounted together with the same picture on them all.
This mean you get a fair balance between all the screen, and they are not arranged in rows, or small isles like in commet.
Also in RS, unlike comit, they have no issue with getting a a DVD player and plugging it dorectly into the tv you are looking at.
I say this as most places use sliptters, and multi changers for tvs to show the same picture, this will cause signal damage and youw ill not be getting a clear picture on what you are buying.
RS will attach a dvd player, and you can see the final best quality.
Also think about in terms of longevity, LCD's have made a amssive jump in the tech they use, and the abilities they have in the past two years, where as LCD's have not seemed to make as much of a jump.
Yes it is (or at least was true that anything 40" plus was plasma only, but this is not so true anymore.
also as has been suggested, stand as far back from teh tv as you would in your loung if you can, but also think about how far away form teh tv you are going to be, there is good and bad viewing distances for different size screens
ie - Read me
this might help you understand what i mean.
also are you wall amouting it, or are you planning on having it on a stand.
personally, i would choose a tv i liked, wetahre its plasma or lcd, i have to look at the think every day