I have spent my entire career supporting and caring for enterprise backoffice infrastructure. Applications that must stay on; no matter what.
Strategic Vision is a requirement. Seeing and Foreseeing give you the ability to predict 9-12 months ahead of time.
Database Platform of choice is Microsoft SQL Server
Database Mirroring in the Real World
Upgrading to SQL Server 2008 R2
Integrating SQL Server with Active Directory via ADSI
SQL Agent for the beginner DBA