Look at a 50" Panasonic plasma if possible. I would challenge you to find an LED-LCD with better PQ at the same price point. I've seen the S2 for < $900, FWIW.
I believe some brick & mortar stores like Sears sell it too, which can sometimes make things easier for model comparisons/returns/exchanges/etc. YMMV. If you don't need a THX certified panel or built-in ethernet port like some of the slightly higher priced Panasonic plasma models, it may be the way to go.
I am finally ready to join the HDTV owners ranks. I am mostly interested in picture quality and my 5.1 surround sound. 3d-not so much. From what I have read 50" plasma seems to be the way to go. Any thoughts from owners of HDTV's?