Very cool - it would be great to see some scientific reserach schemas added to the list...
SQL Server 2005 Express Data Schemas
Deploying SQL Server Express in real-world environments
This data schema series is designed for new database administrators and enthusiasts to quickly get started learning the basics of managing and administering SQL Server 2005 Express Edition in real-world environments. These fully-functional starter data schemas cover a wide-range of scenarios that are designed to help you quickly and easily deploy SQL Server 2005 Express Edition within your organization.
Source: Starter Data Schema
Cross Posted from Dan Fay's Blog (http://blogs.msdn.com/dan_fay)