Samsung HP-R5072 50-Inch Widescreen Flat Panel HD-Ready Plasma TV
do not buy a plasma TV
If you look at the specs, this tv does not support the full HD standard.  All current generation plasma screens do not support 720p or 1080i.  They upsample 720p and downgrade 1080i.  I have a 1080i capable tv and can tell you that losing 300 lines of resolution is a big deal.  Its about the same difference as 720 to normal broadcast tv.