Just in case anyone is interested... (this is not a review of the xbr's, but rather an explanation of how my xbr decision has been further solidified)
As I had said before, I had purchased a 50" Panny pz700u plasma (full 1080p), which had amazing PQ but the glare was intolerable. So, I made the decision to send it back and await the availability of the 52XBR5. In the meantime, however, I thought it might make sense to give the Panny px77u a shot. If you haven't heard about this TV, it is essentially the same as the px75u (a good quality Panny plasma with 720p native resolution), but with an anti-glare screen. Well, I got this delivered over the weekend, and I must make a couple observations. First, the anti-glare screen does make a significant improvement over the glassy screen of the 700u, but I don't think it quite reaches the non-reflectiveness of LCD matte screens. Also, whoever says the difference between 720p and 1080p isn't noticeable at 50" is crazy -- the first thing my wife said when they switched the 700u out and replaced it with the 77u was "nice, but not as crisp". And later, "it's kinda blurry". Believe me, this was not a settings issue, but rather the noticeable difference of 720p v. 1080p... And we sit 12 feet away!! To me, the PQ was decent, and the price about half of what my discounted XBR5 price will be, but anything over a grand and I simply must have the BEST, and sadly the 77u was not it.
...And so it was, his decision to go with the XBR5 was firmly written in stone.
Mav, I have pics so you can see both sets (i.e. 700u and 77u) -- just need to post them now.