Those are good questions to ask at the beginning of the process Sara -
most people wait until after deployment to do so.
The methodology you use for setting up your remote control system is
actually what will determine how easy it is to manage VNC centrally -
which is what it sounds like your cen
I found that with a simple policy to turn on the screen saver and lock the
workstation works will for a little added security. If someone did get the
VNC password to a machine it would still be fairly secure because the person
conencting to the machine would get the Windows NT login prompt.