Applications :: Automator - How To Remove Duplicate Files

Unlike Windows, this damn-ded MacOS X won't ask what to do when moving several items with the same name to a single location. In Vista and 7, it asks if you want to replace all similarly named items with a single of the items or if you want to put all of the similarly named items in the new location and append an annotation at the end of the file name. (I think Windows appends "Copy #" to duplicates) So, I'm left with, "File, File 2, File 3, file 4" in a single folder. I need an Automator action to sort this out and simply move or delete the duplicates.

The simplest action I can think is: Ask for files>get files>select files with similar filenames, neglecting the last characters if they are numerals>reference the size (with accuracy of 1 byte) of selected files>label files of the same size red>select red files>move red files to a selected folder. How can I get these sort of tools? I need a measuring action and another action that will compare file names...