Cursor Zoom is a System Preference plugin to control the cursor size.
Note:
The functionality that Cursor Zoom provides is now built in to Mac OS X 10.4:
System Preferences > Universal Access > Mouse
It is recommended to use the functionality provided by Apple, and not Cursor Zoom, if you run Mac OS X 10.4 or later.
Launchd(8) frontend for Mac that allows you to manage and debug system & user services with a sophisticated interface.