I've heard plasma is the better option on TV's bigger than 40".
I would also reccommend samsung, although the sound on HD channels can be a little low (nothing that can't be sorted by turning the volume up, or using surround sound/speakers)
"The universe has to move forward. Pain and loss, they define us as much as happiness or love. Whether it's a world, or a relationship...everything has its time. And everything ends."-Elizabeth Sladen: RIP.