DupeKill will help you find duplicate files and then allow you to delete or move them.
This utility will also provide suggestions as to which files you may want (or need) to keep based on the file's name. It will quickly attempt to determine the shortest, most descriptive name as the one to keep.
DupeKill can be deployed wherever you suspect there may be duplicates and then simply hit scan. It is as simple as that. If any are found they will be displayed with the following information, Size, File Name, Created and Modified dates, and Action (Keep/Delete).
Version History for DupeKill:
-Added: 'Export Scan...' button (on the right above the file list) to dump the results of a scan to a .csv before executing any actions.
-Changed: Now storing the version # in the assembly information.
-Changed: Small mod to the 'descriptive name' scoring.