Interesting to see Untangle mentioned. After a recommendation I was considering whether it might serve as a good software gateway traffic cop for an office network. Including things like implementing IP block lists to help prevent doofus-cruising (things that could lead to trouble, even stuff like sports sites with a gambling sub-tone). Maybe do more like a software pseudo-firewall-help.
Note: we actually have an "InstaGate" (Esoft) appliance, but we really do not use all the complex VPN-FTP and this-and-that stuff there, and are deciding whether it really has a purpose. (It came in as a bundle when we upgraded the iSeries mini.) So I am involved in this decision .. work more with the InstaGate ? Look at things like Untangle or other software helps ? Use both or neither. .. disclaimer note. I have not yet done the obvious .. read the Untangle forums.
Any thoughts on how Untangle might fit into a light, friendly but a bit too-free office environment -- please share away.