The 1Password Web site describes several ways to sync 1Password between 2 Macs. It you have MobileMe, it seems that the best solution is to sync automatically to iDisk.
It requires changing the keychain used by 1Password, as described
here.
I was using the Mac OS X keychain, and to sync I had to change to
using the "Agile Keychain", which.
When you're done, is stored on galway in
Then I followed the steps to keep that directory sync'd through iDisk. This meant setting preferences in both 1Password's to use the iDisk version of the directory.