LED LCD--Variations and Versions.

[J_WILL_GV]

I am a little bit confused as to what all these new LED LCD's have compared to one another. I hear a lot about the XBR9 and Samsng A950's, but what about the Samsung series 6 and 7. Also I heard that Sony had an LED XBR7 ( or maybe it was eight) last year. I tried to go into my local bestbuy and ask some questions but I get a lot of varying responses as to what it actually is all about. The net seems to do an ok job, but what is it about these LCD's that make them so special. Also, what make and models do you guys ( or gals ) recommend.