Plasma & LED ?

[Shagadelic]

I'm in research for a new HDTV for myself and as a gift.

Me: I have a dedicated HT/Music room that is 10.5' X 16.25'
the viewing range is 10.5' w2w, now having a couch and table/console the range from eye to screen is aprox. 7.5' - 8' in a dark room. I currently have an older Samsung lcd LN46BB55OK1FXZA 46" @60hrtz hdtv with ikea led backlights. I am not in favour for any particular brand, I just want to be open to my best options. I guess if I had to pick a size I would like to be in the 50"-60" range for about $2k give or take. Picture is most important as well as 3D with glasses (free ).

Gift: The family room seating is big enough but limited to wall space (above fire place) to 66"W and 4" off the wall in a bright room (also is there such a wall mount that not only swings left or right, but out, up & down? ...mantle issues ). Again all brands are welcome ($1-1.8k)

I would like to get a Plasma for the HT/Music room
As well as a LED for the family room
Both are open to debate on...