Now that we have decided on Tucson, we need help on an itinerary. We have never been to this area. What should we definitely NOT miss? We don't want to run around like crazy trying to see it all. My husband and I would rather take our time and maybe spend a whole morning or afternoon exploring one or two attractions. We enjoy museums, aircraft, national parks and the like. We are not so crazy about casinos or night life but do enjoy live theatre. Can you give us an idea of what can reasonably be seen and enjoyed in 5 days or so? Thank you in advance.