First thanks to you all for sharing, it's helped to hear other thoughts and see other solutions. I loved the Wine Country Coops in California, but with minimal carpentry skills, think that's a bit past my skill level. I also liked the idea of using the outside of the Eglu as a "screen porch for chickens" - that's how many Southerners survive the summer nights!
So, a few more details. We're on a long narrow 1/2 acre lot, picket-fenced in back for huge shaggy hound (mellow, think she'll be okay with chicks). My lot is wooded in the far back with pines and dogwoods, compost heap and two beehives (outside the fence). Live oaks line the eastern border under which is a long and neglected shrub border. Grass is scruffy centipede variety (like buffalo grass for you midwesterners) four raised vegetable beds, and a rose/perennial bed of which I am fond.
Both neighbors homes are quite a ways away, both visually and smell-wise. The neighborhood is older nice middle class brick ranch home subdivision. No one is covenant-crazy, but lawns are kept mowed, maintenance done, etc. Whatever I put in will have to look nice as well as work for the chicks.
My two close neighbors have been very cool about the dog and my beehives out in the woods, and only mentioned smell as a worry with the chickens. Both are older folks with farm histories but who are happy to be city dwellers now.
Why chickens? -- for fun and a few eggs, increasing my local food intake, organic compost for my garden. There's only my husband and me, so a dozen or so eggs a week is plenty. Maybe I'm trying to relive my summer youth on my uncle's sheep ranch when my country cousins convinced me that gathering eggs was a REAL honor.