If you'd like to spend less time on integrating data sources and focus on more fun stuff, give Talend Open Studio a try. It's free and open source.Sponsored Listing
an integration framework for UML and MOF case tools based on Jini and SOAP. It exchanges models from ArgoUML, Poseidon, Rose, etc. as XMI (UML stored in XML), checks them and generates code. New services simply plug in and can be shared world-wide.