The reports referred to in my April 29 entry on open source software use in schools, published by BECTA are now available from the BECTA website
The project report from the study “Open Source Software in Schools: A study of the spectrum of use and related ICT infrastructure costs” demonstrates that although the implementation of OSS in schools needs careful planning and support, the use of OSS can offer a cost-effective alternative to proprietary software.
From this site you can download the report itself, plus a case study report on using OSS in schools, and an information sheet on the same.