Agreed. My idea was to show the number of users online/offline, and just list the last 3-4 users who had updated their profile. The Users page in the top bar would link to a page with links to all the users.

I'll knock up a couple of static HTML pages over the weekend showing how it might all fit together, and how it will fit on the ITs. The site could be made to fit nicely on the IT, but expand to a reasonable amount on a PC.