Of course hear what the AV aficionados and techs ramble on about, read the reviews, view and calibrate the screens every day for a month before buying by all means, but when it comes down to it, it's your money. Some guys simply can't stand you buying anything other than what suits them. It's like a blemish to what they love (bless them), so they jump in all guns blazing, shoving it in your face like you haven't got an ounce of intelligence.
I unwrapped my 46" Sammy LED "backlit" this morning and am loving it. I've now used it for games on the PS3, blu-ray movies and local HD tele feeds. Yes, I use it gleefully for HD (i live in Hong Kong), so SD purists can take a backseat. Crisp blacks, no auto-dimming problems visible with letterheads and other nitpicking things review sites state, day or night viewing is top notch with no reflection or glare, effortless calibration, plug and play USB for x.264 rips, super slim frame and on a whole pleased as punch.
Sure, plasma have the best picture quality available in SD, but on a HD feed these things look crisper and clearer than plasma. As a minor note, OLED is surely the way forward, but LED "backlit" is a nice stopgap until that day comes.