Sounds like Server mode licensing would perhaps be better for you. Besides, if you choose Server mode on install, you wont get any annoying log entries about seat lics being exceeded. The only thing you'll be annoyed by is an auditor if you fail to show them a server license that you purchased from MS.

Per Seat mode - Best where workstations frequently connect to multiple servers within your organization. Can be applied to Windows 2000 Server, Windows 2000 Advanced Server, and Windows 2000 Datacenter Server.
Example: 100 workstations regularly connect to a Windows 2000 Server. Purchase 100 CALs.

Per Server mode - Best where workstations infrequently connect to specific servers.
You may switch from Per Server to Per Seat mode once. Can be applied to Windows 2000 Server, Windows 2000 Advanced Server, and Windows 2000 Datacenter Server.
Example: 300 workstations sporadically connect to 5 servers, with no more than 20 connections to any one server at a time. Purchase 100 CALs.