Utility to show IP address prior to login

[Alex Morris]

>We have about 1200 pc's here and are running RealVnc to remotely control
>those pc's.  We have been using static IP addresses but are going to
>switch to DHCP in the next month.  Are there any utilities that will
>display a workstations IP address prior to login?  Or does anyone have a
>simple method of determining a workstations ip address for our Help Desk
>to assist a user having difficulty logging in?

BGInfo, from Sysinternals:
http://www.sysinternals.com/ntw2k/freeware/bginfo.shtml

Can't recommend it highly enough.
-- 
Alex Morris