Hi Steve,
I used to live in Phoenix 4 years ago.
It really depends on what you are looking for.
If you are looking for the 65+ crowd and Scottsdale is out of the question then go for Sun City West, or even Surprise. A short drive north of Phoenix you will find Anthem, another great community. Homes can get a bit pricey there though. The areas around Anthem are nice as well -less people.
Areas in the South East of the city like Gilbert, Chandler and Queen Creek are all really nice and safe areas. There are a lot of younger families there.
Also Fountain Hills is a nice place to look at as well. Again, can get pricey.
Other notable mention cities:
Litchfield Park
Goodyear
Peoria
Sun City
Cave Creek
Ahwatukee Foothills
Apache Junction
Areas I would avoid (not that there are bad, but there are better):
West Mesa (East Mesa can be really nice)
Tempe (college crowd)
Glendale
Inner Phoenix
Guadalupe (little
mexico)
Hope that helps!