1)   Batch File Rename 1.23
Batch File Rename is a powerful and flexible file renamer designed for digital camera owners, web masters, music and image collectors, and so on. It provides an easy way to simplify renaming multiple files and folders.

 2)   Quick File Rename Personal Edition 5.0
Very easy to use batch file and folder renaming utility, with INTERNATIONAL CHARACTER SUPPORT! Features such as Undo, Real-time Preview, DOS 8.3 file convert, file rename using wildcards, file mask, regular expressions, MP3 id3 tagging and MANY more.

 3)   Fast Folder Rename 1.5
Fast Folder Rename allows you to rename multiple folders at once (first of its kind!) just by dragging and dropping from an explorer window. Options include changing of first letter to uppercase, all letters to uppercase/lowercase and more!