Sharing files among different user accounts -- file/folder permissions?

Question

I have two main user accounts that I switch between during the day (essentially a PERSONAL account and a WORK account). This allows me to keep separate Mail, iCal, etc -- as well as desktop applications and file organization. However, I am having some major issues with sharing data between the user accounts.
WHAT I WANT: A local drop box for shared communal files between these two primary users. Seems simple enough, right?
WHAT I DID: I created a subfolder in /Users/Shared/ called "COMMUNAL DROP BOX" and set the permissions to R/W for both my user accounts, and no access for the other accounts. However, when I copy files into this folder from my PERSONAL account -- it retains the file level permissions. For example, I grabbed some photos from my iPhone that I shot of a display for work -- I grabbed them off the phone and then dragged them into the drop box. They are in the shared folder, but the file perms are set to PERSONAL_ACCOUNT "Read & Write" and Everyone "No Access." There's no way I can continue to individually change every single file's permission -- how do I set it up to automatically match the folder, so that files like this are then readable by my work account?
-Jason M.

Answer 1

On my machine I've created a directory(folder) in the /Users directory called localshare. Since the directory can have just one owner, I've made root own the folder.
sudo mkdir /Users/localshare
Every user on my machine belongs to the group-Staff. I need to change the group class on the localshare directory that I've created.
sudo chown :staff /Users/localshare
As a reference, I changed the traditional permissions to reflect my desired results and lock down the permissions some.
sudo chmod 770 /Users/localshare
I have added an ACL on the localshare directory that allows the group staff to do anything within the directory- make file and directories, modify files that they do not owner, etc.
sudo chmod +ai "staff allow list,addfile,search,delete,add_subdirectory,delete_child,readattr,writeattr,readextattr,writeextattr,readsecurity,file_inherit,directoryinherit" /Users/localshare
This works well for me with one issue. Files or folders must be copied to the localshare directory. They cannot be moved.
Message was edited by: Mark Jalbert