Newly added to the bottom of the Civil 3D Service Pack 3 page is a document (over 80 pages) titled:
"Project Management in Autodesk Civil 3D 2007".
This is a very comprehensive document prepared specifically for Service Pack 3. The introduction states:
"The content will appear in an updated form in the online User’s Guide for Autodesk Civil 3D 2008."
Transition from Land Desktop
Using External References
Managing Data Using Data Shortcuts
Managing Data Using Vault
Vault Best Practices
Migrating Old Autodesk Civil 3D Projects
Detaching a Drawing from a Project
This is a large and VERY helpful document.