Pondless Backyard Fountain Pond and Waterfall. Even without the fountain, which in Az will grow algae like nobody's business, I think the idea of softening up the patio with a little rock garden with plants mixed in.
Accentuate Fall Color - One sure way to highlight the fall colors in your yard is to pair them with evergreens. Green looks smashing against bold reds and oranges. And bright yellows practically sing next to a dark green background.