Just returned from Best Buy hoping that they replenished their stock and no luck. I did check out the higher end Sharp models and they were excellent. The 550 and 650 series is definitely a step down.
I decided to go with the 58" Panasonic LED. I compared it to the 60" Panasonic Plasma and for the price difference and picture quality, it was a no brainer. Being in a bright room and the chances of the set remaining on for hours of a time, I think the LED is a better choice.
Next home will have a room with no windows, ample audio, and a Panasonic plasma for sure :-)