Linkinus is a highly customizable and flexible IRC client for the Mac.

Features include:

• Complete OS X integration and Aqua look-and-feel
• Interface/Agent architecture (allows detaching)
• Rules defining specific IRC behavior
• Dynamic content display with Styles
• Cross-session history capabilities
• Automated flood protection
• Aliases, Shortcuts, Highlights
• Cocoa Plug-ins, AppleScripts...