Got myself a nice top end, huge Sony Bravia (55" HX923), which came with a couple of pairs of shutter glasses. Have only used 3D with a couple of PS3 games; Wipeout and Motorstorm. I thought it worked very well indeed. Our lounge is only around 4m square, so the 55" fills it nicely to give a good sense of immersion. Actually found Wipeout a lot easier to play, the 3D gave a much better sense of the track coming up.
Still haven't got any 3D films yet. Party due to their cost and partly for the below.
Now for the downsides:
After half hour, my eyes were so bloody tired and strained, I had to have cup of tea and stare at things miles away.
I wear prescription glasses, shoving 3D specs on top, was clunky and pain in ass.
We just got 2 pairs of specs with the telly, so when mates are round for film, 3D is out, until I buy more. But at £45-50 each, that could be a while.
My wife can't stand 3D, she often get motion sick just watching 2D when there's lots of fast camera movement - she had to walk of of Black Swan in 2D. She's ain't got a hope in hell of watching a 3d film all the way through...
BTW the LED model is more, because it uses LED light tech to drive the back light. Its better as it can give more focused lighting, rather than non-LED screens that back light huge sections of the panel to get the desired brightness, but making nearby blacks look grey. Its all about giving greatest dynamic contrast between the brightest whites and blackest blacks in close proximity. Look for film titles, white text on black, many screens give a big grey patch all around the text. There a many variations of the tech that give differing quality and compromises at differing costs, but that's the general gist of it.