NETWatch
NetWatch is a program that keeps IT staff informed about their network infrastructure - wherever they are! Designed for Microsoft Windows, Novell NetWare, UNIX and a range of Internet services such as web servers, NetWatch 2 monitors them all - logging important data, plotting trends and... approach and view one window of alerts from all NetWatch installations on their network. ... Using the NetWatch Web interface, monitoring and alert data - and even automatically updating trend graphs - are available from any browser.
http://www.sharpeware.com/pub/netwatch.exe - 7Mb - Download - Screenshot

LogonWatcher
Main functions: - LogonWatcher can show any type of user logged on workstation - local or remote. And it will not only show them in single-lined list as Netwatch do - you can also group your network to as much as 10 groups of computers to watch. This grouping can be done by the way you prefer -... - Take snapshots of network usage by users - one group, all groups or selected groups, automatically once per ... ... You can even select time interval and destination folder for saving. ... - Remote Shutdown, Restart or Logoff (with ChatKiller service) - Remote Active Windows Title show - you...
http://www.alxsoft.com/files/pc/logonwatcher.zip - 1Mb - Download - Screenshot