Software

Ruby Bits

A collection of scripts and tools relating to the Ruby programming language. Ruby is a flexible scripting language. The linked page includes scripts for RubyCocoa, the Asterisk telephony server and LaTeX changebars.

OCDisasm

An interactive Objective-C disassembler for the PowerPC architecture.

Miscellaneous/Old

SCPlugin: a version control contextual menu plugin for the Macintosh OS X Finder (project is currently inactive and looking for developers)
Double-ended sliders in Java Swing: browse | zipped
SMIME for Pine v4.41
Bluetooth ALSA Headset Driver
Some netatalk things (not updated since 2001)
Mail Act-On and Mail Tags — plugins for Mac OS X mail program (contributor)

Links to some Useful Computing Tools

Ruby and Python — Scripting languages
zsh — Bourne-compatible shell with excellent interactive features
Subversion — A revision control system, designed to supercede CVS
TortoiseSVN — Provides Windows shell integration for Subversion