Just received my 70" today and set it up. With just a few tweaks, the picture is AWESOME. This is my second HDTV, as I held on to my RCA38310 CRT Tube TV for 5 years because I loved the PQ. This is by far the most impressive picture quality I have ever seen in such a monstrous size.
I intended to buy the 60, but when I saw the 70 in my Sony Style I fell in love. After fearing a loss of PQ by going to such a massive screen, my fears were unfounded.
Incidentally, running Madden '07 @ 1080i through component feed on my XBOX 360 did not produce any visible game lag at all.
I also followed the hints found in this thread, bought an SUG512 stand, and modified it with a Dremmel...worked like a charm. I needed the angled footprint of this stand rather than the linear design of the new one.
Anyway, thanks to everybody here whose posts I have fed upon for months to help guide in making a great decision!
Recovering Format Warrior
Therapy administered daily
by PS3 BR and XA2 HDDVD