Which programs need to find the data after you move it to a HD data partition?
You can shrink C to create a Data partition then copy the User folders over now, test by linking each by rightclicking to add to related Library - Include a Folder - Windows 7 Forums
If it works satisfactorily delete the content of the C User folders, run CCleaner to clean up temp and other files and Registry keys, then clone it over.
Remember after cloning to set SSD first to boot in BIOS setup. Later delete the Win7 partition on HD to Recover Space Used by an Older OS