Ranch is a standards compliant CSS based template with rounded corners, mission statement, breadcrumbs, search, 2 level menu. It is a fixed width (1000px) with a color scheme that is very simple to change in the ranch.rss file.
This theme was started as a Zen theme but has since been completely separated from Zen. If you find any Zen-ism's please don't hesitate to mention them.
You can see the live demo on the demo site, and you can see a variation with different colors and backgrounds, and some options turned off, at http://BrauerRanch.com.