Buy LCD TV

I was leaning towards a 50" plasma, saw a lovely Panasonic in Currys for £899, can't remember the model, but a friend has now steered me back towards a 47" LCD. I'm not a "fanboy" of either LCD or Plasma, my living room TV is a 40" Samsung and I love it. My friend on the other hand, wouldn't touch Plasma with a barge pole. Also, he thinks 50" is too big for the room. My bedroom is quite large, 2 rooms combined by knocking in a wall. Total length from viewing to TV is probably about 24/25 feet.

So a few queries, is 50" too big? Am I better with a 46" or 47"? And what is the best option for the money? I have looked at a few and I'll just list the LCD ones here, since it is the LCD forum! The TV will mainly be for SD Sky viewing, and not even from a box. The box is downstairs but will be viewed upstairs using one of those magic eye type things. Will also have a Wii and DVD player connected. So 1080p and the other high quality things are not that important at this stage, but at some point this TV may become my main downstairs set so I am thinking ahead.

TV - Samsung LE46B551A 46" 1080p LCD TV

TV - LG 47LH3000 47" 1080p LCD TV

Sony KDL-46W4000 - 46" Widescreen 1080P Full HD Bravia: Amazon.com

That's just from my first quick search. Any other suggestions, and the best places to buy would be good. I live in Ireland so I need somewhere who can deliver to the Republic or North of Ireland. There is a Currys store nearby in the North.