Steve,

Here is were I got my answer: http://msdn.microsoft.com/en-us/library/ms190677.aspx

SQL Server 2008 Books Online (December 2008)

Creating a Database Snapshot

This topic describes some best practices for creating database snapshots and provides a link to the procedure for creating them.

Any user who can create a database can create a database snapshot.

Important:

Database snapshots, introduced in SQL Server 2005, are available only in the Enterprise editions of SQL Server 2005 and SQL Server 2008.

Thanks,

Ben