Imaging Windows 2003 Server

A client of mine has a Windows 2003 Server living on a 12 GB hard disk drive and it’s running out of space with only 8% of free space remaining. Looking for a clean, fast, and safe solution I’m considering creating an image of the using a Symantec Ghost product but, short of calling Symantec, I don’t quite know which Symantec product would support the imaging of a Windows Server. Any recommendations?