Hi - we are a small growing web design company and use gmail for internal chat within the employees... now, the biggest program we have with gmail is that it is something employees can carry outside the office too and can take our client's senstive login information outside our office... which we don't want. So, i am looking to see if anyone here is aware of any LAN based chat software utility?
Run Bahamut on a server in the LAN, and give everyone an IRC program (there are many of them - see http://en.wikipedia.org/wiki/Comparison_of_Internet_Relay_Chat_clients#General).