Some plasmas are better than others. I know. I used to test them for a largish computer company.
I got a Hitachi 42DP3000 last Jan and love it. My couch is about 9-10 feet from the screen, and I watch normal TV, DVDs, *cough*digital TV eps*cough*, play games (NFSU2, Lineage2 and BF1942), and IRC on this thing.
It supports 1280x768 res, which is (roughly) the lower HDTV, which looks AWESOME on it.
Even up close, although the letters are obviously bigger, it is as crisp as any of my TFT's (there are seven computers and 10 TFTs in my house).