There have been two new white papers posted to the Autodesk Website.
Using Civil 3D for Large subdivision design
by Andrew Walther, PE
Autodesk Civil 3D 2007 Styles: An Updated Guide to the Fundamentals
by Mark Scacco, PE
CHECK THESE OUT. There is a lot of valuable information and insight into how this program works and how to apply the functionality.
Follow the link to download or view.
http://usa.autodesk.com/adsk/servlet/index?siteID=123112&id=5173807