The Model-Glue Framework has a really nice feature called ConfigBeans, powered by a little tool I wrote called ChiliBeans.  By using ConfigBeans instead of inserting configuration values, like Datasource names, into your ModelGlue.xml file, you can seperate your configuration from your application.  This post gives a quick overview of creating a new ConfigBean and using it in your application.  On...<p>[<a href="http://www.firemoss.com/blog/index.cfm?mode=entry&entry=1EA76969-E081-2BAC-695D63CAE46CD2A6">Read more on Joe Rinehart's blog</a>]</p>