…was far easier than I expected.  I thought I was going to have to add all kinds of switches or settings, either on the client or server, but no.

$ ssh -p port -X mylogin@myserver.com
$ fwbuilder &

and I was running.  Now that’s how I like it.  But, just in case it was hard, I had references:

http://www.cyberciti.biz/faq/linux-unix-tunneling-xwindows-securely-over-ssh/
http://www.vanemery.com/Linux/XoverSSH/X-over-SSH2.html
http://www.faqs.org/docs/Linux-mini/Remote-X-Apps.html