Compare what kind of house you can get for $600,000 in six markets across the country. First up is a sleek midcentury modern house in Phoenix, whose clean lines are accented by innovative landscaping and retro-style furnishings. Next is a visit to a Racine, Wis., to see a prairie-style home designed and built by the architect who lives there. Then it's on to Adel, Iowa to meet a couple who realized that the best way to promote custom, precast concrete homes was to build one for themselves. A quick tour of three homes in Worthington, Ohio, Madison, Miss., and Springfield, Ill. wraps it up.