Apologies for cross posting. (Never sure who reads which list)
Thought this Open Source project might be of interest. Open Repository and Wijiti have released to the community J-CAR Joomla! Collections, Archives, and Repositories suite for integrating an Institutional Repository or Digital Asset Management System, specifically DSpace, but could utilise any OAI Mets enabled repository, and import and display items in the IR in the Joomla interface.
Here is a link to the demos and the code forge:
All welcome to join the forge project and offer up suggestions, patches, further functionality
We demonstrated recently at Museums Association conference and released this week at DSpace user group 09 in Gothenburg.