Check out http://www.igniterealtime.org/projects/openfire/index.jsp http://www.igniterealtime.org/projects/openfire/index.jsp. Its not exactly what you're look

Check out http://www.igniterealtime.org/projects/openfire/index.jsp http://www.igniterealtime.org/projects/openfire/index.jsp. Its not exactly what you're looking for, but it might help. We use this at my office. It is meant for collaboration, but who knows, maybe you'll get some use out of it. OpenFire has a great config front-end if you don't really feel like tweaking stuff around. The only thing I don't really like about it is that it uses Java, but we've got great speed and uptime with it anyway.