...FWNUA keeps track of the workstations logins so you don't have to!
FWNUA now supports syslog and Splunk! Look for the fwnua - syslog version in the files list. Use Splunk or your own syslog server with data mining tools to create a robust user tracking system.
Find our Spunk app on Splukbase: https://splunkbase.splunk.com/app/2773/