there is 'rkill' as well. they also ported a ton of other *nix commands to 2000 you can also use.
c:\>shutdown \\computer_name
or
C:\>shutdown
and this will bring up a dialog box then you select the machine you want to shutdown. you can also select to reboot or perform a straight shutdown. If you need the resource kit I may be able to 'locate' you a copy

cheers
-Moniker