Quick File Rename Personal Edition
Quick File Rename is a full featured professional batch file and folder (2-in-1! ) renaming utility that is both easy to use and has features such as Undo, Real-time Preview, instant rename by dragging and dropping files, a built in folder browser to browse drives / folders over local as well as... 3 file convert, file rename using wildcards, file masking to filter files, allows you to prefix/postfix characters, replace characters, uppercase/lowercase/mixed case rename, updating of time stamps, MP3 smart rename, enumeration, illegal character filtering, MP3 id3 v1 tagging and many more.
http://www.skyjuicesoftware.com/software/downloads/qfr_per_inst.zip - 1Mb - Download - Screenshot

Better File Rename
Better File Rename is a shell extension for the Windows Explorer, which allows users to quickly rename multiple files. This powerful, yet easy-to-use utility transforms the often tedious and time-consuming task of renaming multiple files into a simple matter of seconds. ... Better File Rename is ideally suited for webmasters, users who need to transfer files from UNIX, digital camera owners, as well as for all other users who deal with large numbers of files, such as image collections.
http://www.publicspace.net/download/BFR.zip - 586Kb - Download - Screenshot

Replace and Rename
Replace and Rename allows you to perform both file renaming AND text replacing in one easy batch file from one "keyword" import file. The software works with files from directories and subdirectories. All you need is to select a directory (or directories) with the files which you would like to... And it will rename files which have extensions specified in the "Rename files which have extension" field. ... The "Load from file" button allows you to load a text file which has values delimited by the tab character.
http://www.replsoft.com/r_and_r.zip - 935Kb - Download - Screenshot

Batch File Utility
Batch File Utility is a folder and file renaming utility, that supports wildcards and regular expressions with a variety of renaming features, including options to change case, replace characters, replace strings, set file attributes, rename mp3 files based on their ID3 tag information and more. ... Batch File Utility provides a preview of the changed names as well as an Undo option that allows you to revert the name changes if needed. ... In addition, the program can also move or copy files and optionally (batch)compress them.
http://www.flashshare.com/bfu/download/bfusetup.exe - 996b - Download - Screenshot

File and mp3 tag renamer
File And MP3 Tag Renamer is a powerful, easy-to-use multiple file and mp3 renaming utility. With this powerful program ,you can quickly and easily batch rename files and mp3's with a number of possibilities and options, including change case, change the file extension, insert string,delete... And File And MP3 Tag Renamer is an heavy duty file renamer, suitable also for renaming multiple files and optimized for speed. ... File And MP3 Tag Renamer also allow you to rename your mp3 collection according to their tag information(ID3 tags)!
http://www.123renamer.com/download/123renamersetup.exe - 768b - Download - Screenshot

NameWiz
NameWiz will let you rename files, folders and sub-folders en masse in any which way you want, it is also an advanced file renaming utility. Some of the files are almost impossible to be rename, but NameWiz can be further expanded using plugins so you can rename anything you like, no restrictions. ... Change or add file extensions, file selection by position, specify capitalization rules, Sorting by name, size, extension, date/time, ascending/descending order. ... Batch rename. ... The Windows system menu is available by right-clicking a file.
http://softbytelabs.com/Downloads/NameWiz.exe - 5Mb - Download - Screenshot

FileName Pro
FileName Pro, a professional grade batch file naming utility. Whether you have a few or thousands of files to rename, FileName Pro can rename your files in seconds. Name files using any combination of file naming schemes. Name using ID3 tags, EXIF metadata, dates and times, series style or even... Exclude and add text to file names, change case or work only with certain file types. ... You can even move your files to a new folder when the rename operation is complete. ... If for any reason you need to undo the file naming operation FileName Pro can do that too!
http://www.jermar.com/fnp/fnp2.exe - 4Mb - Download - Screenshot

A Better Finder Rename
A Better Finder Rename is a contextual menu plugin for the Macintosh Finder, which allows users to quickly rename multiple files. This powerful, yet easy-to-use utility transforms the often tedious and time-consuming task of renaming multiple files into a simple matter of seconds. ... A Better Finder Rename is ideally suited for Macintosh webmasters, users who need to transfer files from Windows or UNIX, digital camera owners, as well as for all other Macintosh users who deal with large numbers of files, such as image collections.
http://www.publicspace.net/download/ABFRX.dmg - 2Mb - Download - Screenshot

Useful File Utilities
Multifunction program for performing searching, replacing renaming and batch replacing in many files from the local disks and network. The standard file browser allows to specify great numbers of files before processing them using built-in or plug-in utility. ... The Finder utility allows to search documents by file mask, by date, by file size, by attributes and even by text strings as if you use an internet search engine. ... The Renamer utility lets you rename multiply types of files quickly and easily with using many options.
http://www.replsoft.com/usfut.zip - 1Mb - Download - Screenshot

Single & Multi-File Renamer
The Single & Multi-File Renamer is a relatively easy to use file renaming utility. You can either rename a single file or rename multiple files across a single directory by running the appropriate program.
http://www.geocities.com/mlbl/rendl.htm - 269Kb - Download - Screenshot