Filter & Block

MouseZoom is a Mac OS X Cocoa pref pane which speeds up your mouse cursor movement in Mac OS X

Fixes the Apple Remote for Plex, Boxee etc. in Snow Leopard

Automatic allows you to set up subscriptions for virtually any content linked in RSS feeds: podcasts, videocasts, torrentcasts... Rule of thumb: if it ends in '-cast', you can get it with Automatic. Can use it with Transmission

Preference pane that allows a user to set the default application used for various URL schemes, file extensions, file types, MIME types, and Uniform Type Identifiers

Dictionary Cleaner is a convenient System Preferences Pane utility to maintain your custom spelling dictionary.

Alcor

This software enables you to control the volume of the startup sound of your Macintosh computer from Mac OS X.