I am considering the samsung LN46C750 which is last year's LCD with CCFL backlights or this year's samsung UN46Dxxxx models with LED backlights. They have eco sensor dimming although they are not full array LED, only edge lit, the 6900 uses eco sensor and micro dimming and 7000 uses micro dimming technologies. The other question about these models is how to see what they look like in a store with program material that I will not be viewing when I get it home and use it. BB's dark room did show that I prefer the LCD/LED 46" set better than both 51" and 60" plasma sets with same programming on all three of them on account of the plasma showed more "noise" according to what the salesman called it and the darkness I described, especially on the whites. The color was better on the plasmas and even though the 3D effect was way better on the plasmas I don't like it, even for sports. These three tv's in the dark room were playing yet a different programming source than the sets on the back wall of the main showroom which had a different programming source than that which was played on their tv's in the front of the store which were more isolated as only two or three tv's and they were hit with more sunlight from the windows but also the flourescnet lighting like those tv's along the main wall in the back of the store. I'm also thinking of buying two - 1) 40" for the den that the kids will use for sports tv (mostly tennis and pro wrestling) and ps3 gaming, and 2) a 46" for my bedroom where we will watch turner movie classics mostly in black and white, efx tv series, and tennis along with news, shopping channel. Mostly it's for my wife.