Sammy Fifty-Five, you'll never regret it.
Take it from someone who has owned sets from 27" to 82" - Sony, Hitachi, Samsung, RCA, Haier, Mitsubishi and probably a few others. I also have a Dell 1080 projector.
The 3D is good on the Sammy if you don't mind wearing the glasses, I don't use them personally.
The Sammy Smart TV is awesome technology, actually a Media Player with Internet access.
Investigate it.
But the speakers are horrible, which is why the sound is routed through the sound system. We also don’t use the internet stuff since we have an Apple T.V. To route Hulu through, for example, requires a Hulu account. It is easier to hook my laptop up to the Samsung to do what I want on Hulu. It worked really well with the Rose Parade yesterday (KTLA streaming). (We don’t have cable.)