I live in the UK and purchased my 80" Xscreen with CSE solutions www.csesolutions.co.uk
. I must say that it has replaced my living room Plasma quite comfortably and since I use it on a daily basis - watch cable, play games, etc etc, it really suits my life-style. Considering it looks like a plasma as well, I see it as a nice decor for the living room. As for the difference between the hi-power and the xscreen, I felt that the xscreen picture quality was much better both in the dark and in ambient light situations (although price is also quite a bit more). This is probably because the gain of the hi-power is 2.8 while the Xscreen is 2.0 which according to my dealer, a 2.0 gain is optimum. The 2.0 gain was also much better to watch in the dark because 2.8 was a bit too bright for me (at night). All in all I feel the Xscreen was very remarkable both in the dark and with ambient light.
The downside of the screen is that the viewing cone is around 45 degrees so the couch needs to be somewhat in front of the screen but I had no problems with this cause I normally watch from the front anyway. My 2 cents..