I recognize the debate over 720p versus 1080p, but I think I might grab the Panasonic TH-50PX75U at Sears F&F night, before BF. Although this 50 in. plasma is only 720p, many reviews (CR being one) have it second only to its 1080p sibling, which is an additional $1000, give or take.
We gave it a good HD-DVD feed comparison to several other sets, including the 1080p version and thought its picture was excellent. It should be in the vicinity of $1250-$1280 at the Sears sale this weekend. Unless Best Buy has something better, that's where we are leaning right now. If the 1080p version were only $200 more, rather than a $1000, it would be a tougher choice.