A good Technet web cast about deploying SQL Server 2005 on SANs can be found at:
As well, an I/O and Disk Management course based on SQL Server 200 can be found at:
As for mirroring with SQL Server 2005, a good resource is:
A great recent addition is the paper by Mike Ruthruff:
A great best practices article on Predeployment I/O on SANs can be found at:
The article is written by Mike Ruthruff with contributions from Michael Thomassy and Prem Mehra. It contains excellent information on how to configure your SQL server to get the max out of it for your SQL deployments.