We've just launched our newest feature - The 2009-2010 Catalog - Department of Graduate and Professional Studies. It's all built in WordPress. Check it out: http://content.nichols.edu/course_catalogs/gps/
The new site uses a plugin to manage the sidebar navigations - Page Lists Plus - see that here: http://www.technokinetics.com/plugins/page-lists-plus/. Other than that, it's a standard WordPress install with custom built theme.