Although we would never recommend this for production servers, anyone who is Microsoft savvy enough to be running Windows Server 2003 will be pleased to know that there is a release candidate of the first service pack now available. SP1 RC adds many security enhancements; the "Security Configuration Wizard" helps you to secure your server for role-based operations, improves defence-in-depth with Data Execution Protection, and provides a safe and secure first-boot scenario with Post-setup Security Update Wizard.
Download here.