Phoenix - Recommendations?

We are off to Phoenix in September for 5 days at The Phoenician.
(Excellent bargin with America West Vacations)
We have stayed in Phoenix several times and usually just spend time relaxing since the rest of our holiday is taken up doing things and being busy, however we want to explore rather than just shopping and mooching round this time.
We will have a car for some of the time but don't really want to spend too much time driving.
Has anyone got any recommendations for places to visit?
Thanks for your help
Shaz

We have stayed in Phoenix several times and usually just spend time relaxing since the rest of our holiday is taken up doing things and being busy, however we want to explore rather than just shopping and mooching round this time.
We will have a car for some of the time but don't really want to spend too much time driving.
Has anyone got any recommendations for places to visit?
Thanks for your help
Shaz