Guillotine 1.0

[Info-Mac]

Download: http://archive.info-mac.org/disk/guillotine-10.hqx

Guillotine is a drop box that "decapitates" those ugly all caps DOS-like
filenames. Just drop the offending files/folders on it, and the names will
become all lowercase with the first letter of each word capitalized.
Guillotine processes the complete contents of dropped folders. To make
filenames all caps or all lowercase, just choose the appropriate item on
the Options menu. Note: you may have to close and reopen the folder for the
new name(s) to appear in the Finder. (Mac OS 8 does not have this problem.)

Guillotine is a fat binary for optimal performance on 68K and PowerPC Macs.
It supports the Navigation Services and Folder Actions features in Mac OS
8.5. Best of all, it's free.