RamGec Duplicate Finder 1.1
Fast, simple and reliable way locating file duplicates on your computer.
This free application will search your defined folder for exact copies of your pictures, documents, archives or other files.
Just select your folder and with a single click locate all your duplicated files on your computer that consume unnecessary your disk space. Reliable and fast comparison can quickly run through your pictures, music files, archives, documents or any other data files searching for exact copies. It's a free, features-rich, open source application with a simple, flexible and easy to use user interface.
* Freeware and Open Source * Lightweight and Easy To Use * Custom Search Queries * Multithreaded, Resource-Friendly
In other words - small and useful utility that does exactly what you ask for.