geodatabase schema ... design... import and export

There are 2 ways in ArcGIS to export empty schemas, check this out: http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?id=2043&pid=2038&topicname=Copying_the_schema_of_a_geodatabase

This is a 3rd party tool I use a lot to design geodatabases (Geodatabase Designer v2).... its an excellent design tool: http://arcscripts.esri.com/details.asp?dbid=13484 and you can use this to export any design.