So I'm not sure how often you need to do it, or if this would be helpful, but if all of the machines are MAC, all have ssh turned on, and are part of the same network, here is an app that would be a help using the process you described above. Albeit, this app would let you map
all of the machines from one terminal entry.
Cluster SSH Tool for OSX -
http://code.google.com/p/csshx/
This is literally what it says: enter command once and it sends to a cluster of terminals. In my world, we use it to run updates on several FreePBX boxes at once, but you get the idea.
You can also create an Alias to the share and drop that onto each user desktop or any folder, assuming you have rights to them.