I would call Panasonic first and foremost. If there is no physical damage to the TV, they will sometimes step up and take care of customers. Not always, but sometimes.
The bottom line remains that Pansonic has a failure rate which is about half the national average. This doesn't mean their stuff doesn't fail, and sometimes at a very poor time, but it is still one of the most reliable brands that money can buy, and with some of the best prices out there for the quality you get. Compare to LG which has a failure rate that is about twice the national average, and it makes Panasonic a pretty solid product for a lot of consumers.
Your situation is extremely unfortunate, and I feel for you, but I would still recommend Panasonic to you, or to anyone else who is looking for the best display with the highest reliability on the market.
I know I've had my Samsung go to the toilet and I still ended up buying a new plasma from them last year.