Registering the Acctinfo.dll from the Windows 2003 Resource Kit will allow you to view additional account information in the "Active Directory Users and Computers" snap-in.
The additional information includes password expiry date, the date and time when a user last logged on / off and more.
If you have the Windows 2003 Resource Kit installed, you will still need to register the dll before you can view the new property tab.
To register Acctinfo.dll run
regsvr32 %systemroot%\system32\acctinfo.dll on the computer you access "Active Directory Users and Computers" (doesn't have to be your DC)