I use Digsby 99% of the time. I've used Pidgin and Trillian in the past, and Digsby simply blows them away.
For the other 1% I use a program called Psi. It is a super simple Jabber(/Gtalk) client, but the cool thing is that it supports integrated PGP/GPG encryption.
For the other 1% I use a program called Psi. It is a super simple Jabber(/Gtalk) client, but the cool thing is that it supports integrated PGP/GPG encryption.