dont go replacing just yet ..is the part replaceable? I only ask because my landlord's Vizio tv (part of the furnishings he left behind) went out one day. I was able to track down which board needed replacing and search the web. Many offerings on ebay (though not for my specific part) and I eventually found an obscure source for a replacement board. $200, 1 hour, and the tv was back and functional.
Now, if you are looking to replace in spite of all that I can highly recommend the 6/8 series samsung plasmas. Had mine since xmas and it's been nothing but bliss.