Most of the commercial plasmas I've seen have been pretty close to the consumer versions, but without some of the bells and whistles. I bought a commercial Panasonic EDTV plasma--great deal, and quality-wise no different than their consumer models. Like some of the other commercial units, it had blade slots so you could add on other inputs--I added a DVI/HDCP card for that input. Pioneer also has a well regarded line of commercial units. If you don't need speakers, it can be a good deal. Probably not the end all or be all of HDTV, but worth considering. The gurus over at http://www.avsforum.com can give you specifics.
You also have the flexibility, if you are interested, in buying four of them (or nine of them) for a really big plasma screen. ;)
You also have the flexibility, if you are interested, in buying four of them (or nine of them) for a really big plasma screen. ;)