Ed,
In addition to the renovated Phoenix Symphony Hall, the Valley will debut another new hall this season. The Mesa Arts Center (which will be the home of my orchestra - The Mesa Symphony) will have four separate theaters, 200,000+ square feet, and the Ikeda Hall will have 1,600 seats. I'm going there tomorrow night for our first meeting of the season to get a tour of the hall!
Here's an artist's conception of the Center at night and there are more details at this
website.
It must be very exciting to have performances in the new Disney Hall in LA. I'm going to make it over there one of these days to hear the LA Phil.