Great choice for a plasma. I've had the same model for about 7 months now and could not be happier with the choice.

My advice is to buy the extended warranty....this is a big ticket item and it is good protection for the money. If you don't ever use it, so what, if you look at it frpm a pure financial perspective, the amount, if amortized over a realistic useful life, will be meaningless.
I calibrated mine using the Avia DVD with very good results, but I am still considering a professional calibration, just haven't pulled the trigger yet.