I work in a heterogenous environement (Macs, Windows, Linux). The group size is about 20 people, but will slowly grow to ~30 over the next several years. I am interested in using my MacPro to share a volume to contain data and documents that are used by many of us on a regular basis and to facilitate sharing larger files. The way I have done this before in Tiger is simply to simply provide a common username/password to all users and allow them to mount the shared partition. I'm a bit loathe to create accounts for each individual and it isn't obvious to me that this is entirely necessary for our purposes. Is this a bad idea? Is there a better/best-practices approach?