If you missed "The Business Value of SOA" presentation on InfoQ.com I highly recommend.

"In this presentation, recorded at QCon, Burton Group research director Anne Thomas Manes talks about how to make the business case for SOA.
Her talk covers explaining SOA to non-technical business people, various approaches for selling SOA to management and gaining funding for SOA investments." and much more...

http://www.infoq.com/presentations/anne-thomas-manes-business-soa