Chat & IM
More iChat Effects
iSmileys(Free)Chax
Ksuther(Trial version)Tweetie
Atebits(Trial version)Chat Transcript Manager
Unsanity(Trial version)Yahoo! Messenger
Bharti Airtel Ltd(Free)Syrinx
MRR Software(Free)Jitsi
Jitsi(Free)VChat
Bharti Airtel Ltd(Trial version)Messages
Apple(Free)iSoftPhone
Call4mac(Trial version)