Two-way Sync of Directories - how? (rsync?)

[Steven N. Fettig]

I have two workstations I use (one at home and one at work) connected 
via a private DSL link that each have the directories /home/me.  I want 
to run a cron job to sync the directories (bi-directionally).  Rsync 
seems to work only in one direction (I know I could set up the script on 
both machines), but I wanted to see if I could run the script on one 
machine and simply copy new files over to the lacking machine or update 
files via checksums (where a file has been updated on one machine and I 
want that updated file to be copied over the old file on the other 
machine).  I am not worried about the case where I might update a given 
file on both machines at the same time - it doesn't happen.
Any advice and scripts that you use to accomplish this?

Thanks,
Steve Fettig