I created a plugin for connecting to SSH with Gnome Do.
To use the plugin type 'con ssh' followed by TAB. Then type the name of the server you want to connect to followed by Enter.
Update February, 4 2008: The SSH plugin will now also list all hostnames that are specified in your .ssh/config.
If you installed the previous version please remove the 'SSHAction.dll' file from you .do/plugins directory.
Update May, 3 2008: The SSH plugin is available in the do-plugins package on Ubuntu and possibly also in other distributions. The files are not available on this website anymore. I'm sorry for any inconvenience this may cause for you.