Bitlbee and gtalk
To connect to your gtalk account via bitlbee, add the account in the usual way :
account add jabber <username> <password
Then set the server :
account set <account nr>/server talk.google.com:5223:ssl
If you get the error "jabber - Couldn't log in: Short write() to server", this means that bitlbee was not compiled with gnutls support. How to fix this depends on your distro :-)
In my case (Gentoo), remerge Bitlbee with the gnutls USE flag.
Happy chatting