I have installed Ubuntu Server 12.10 and during the install created a user for myself ben, I now wish to add a second user bill.

I have an external drive that I have mounted to /media/storage and created a shared folder called Share, the owner of the folder is ben:ben, how do I grant bill access to the folder? I don't want to put him in the group ben.

Once setup, I need to configure Samba & NFS, here is my Samba configuration

[Share]
   path = /media/storage/Share
   read only = no
   public = yes
   writeable = yes
   force user = ben

How do I give both bill and ben access to the share via Samba?

Thank you.