Blogger Manas details how to chat using the Google Talk protocol with our favorite open source IM client, GAIM - I mean, Pidgin.
The process is easy-peasy; it’s just a matter of knowing the right server settings. Hit the link to add Google Talk to the list of protocols you chat on with Pidgin. —Gina Trapani
How to configure Pidgin to work with Google Talk [ManasT.com]