Chax is a collection of minor modifications and additions that make using Apple's iChat more enjoyable.
Features:
User list:
-Toggle text status visibility of users
-Automatically resize the contact list to fit the number of visible users
-Set font of names, status messages, and group separators
-Show animated user icons
-Ability to hide iTunes music store links in text statuses
-Idle time included in tooltips
-Display Address Book nicknames instead of full names
-Option to show a warning before messaging mobile users
-Hide the audio/video status icon at the top of the user list
-Message a specific screen name for people with multiple screen names
Message window:
-Tabbed chats, allowing you to keep all of your chats together in one window
-Option to auto-accept text chats, skipping new message notification window
-Show status changes directly in the message window
-Disable the smiley button in text input lines
-Option to open images sent through direct connect directly in Preview
-Send away auto-reply only once per conversation
-Save and restore window positions for individual screen names
Requirements:
OS X 10.5 or later
Version for OS X 10.4 is available
here.
Universal Binary
Author's Site
MajorGeeks TX
Internode
Screenshot