Although learning ssh was cool for copying files from home to work over the internet, I found the right way to do it.
On home computer, In sharing prefs, turn on personal file sharing - duh. I was thinking of this as just ethernet.
Since my home computer is running a program called DNSUpdate in conjunction with a website dyndns.org, my free domain they gave me can be used to mount my harddrive at home on my desktop at work.
So now, from work, I just "go to server" and type in the domain of my computer at home, and log in like ethernet. Very cool. No more zip disking back and forth. I can even set up users and public folders and allow others to log in. Not bad.