Plasma is a dying technology. The only main advantage to plasma is input lag for games.
May I suggest this model?
Sceptre 40" Class (38.5" Diag.) 1080p 60Hz LCD HDTV X408BV-FHD
It's only $299 and 1080p. I have it and it's great.
Walmart has the same one (slightly different model number, because it's Walmart) here:
Sceptre 40 Class (38.5" viewable)LCD 1080p 60Hz HDTV, X409BV-FHD
We have the 240hz LED. No burn in problem. No problem with keeping up with video games. It is a 3D model. 3D also need faster refresh.
Our friend was over two weekends ago they have got an LCD when we got the LED. He commented on how superior our picture was.
for $278. Walmart is cheaper, but you have to pay tax, where NewEgg is just $7 shipping.