It's an edge-lit LED TV IINM. LED TVs in generally perform a notch better than CCFL backlit LCDs when it comes to the PQ, black levels and the contrast. The power consumption is lesser compared to CCFL backlit ones and you end up paying a hefty sum too.
If you can wait a bit more, Sony is about to introduce the EX600 and the EX700 series LCDs and Samsung is about to introduce their 2010 lineup of panels so the older ones would get a price slash.