After finding quite a few articles mentioning registry settings, this article pointed me to EZ GPO software appears to be the solution (at least until we upgrade to Server 2003 ! How to use Powercfg.exe in Windows Server 2003)

other items of interest:
Change Power Management Configuration (All Windows)
Enable Monitor Power-off on the Logon Screen (All Windows)

"standby" and "hibernate" disappeared!? - this one needs a reply .. if I get time
Remove Stand By from Shutdown Options
How do I disable Standby mode on Win98 for good
Disable standby when laptop lid is closed
How to disable "Standby" key on MS Internet keyboard?
How To Enable or Disable the Standby Mode
Group Policy Changes in Vista - here's where Microsoft is finally catching on
Disable standby through registry?
tip # 137 has some help

phrases attempted while reasearching this topic:

power management windows group policy
power management windows
power management dynamic
power management policy
network power management windows group policy
network power management windows 
domain power management windows 
disable standby
CurrentPowerPolicy
group policy administrative template power disable standby