Originally Posted by garce

Thumbs Plus Pro from Cerious will easily handle that. You can organze all of your media files over your network, and sort, search, rename, compare, move 'em all around at will.

I've been using the program for about a decade now and couldn't live without it.

Edit: I just checked, and simply hitting ctrl - shift - F initiates the find similar images function.

www.cerious.com