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Question about licenses

Hi all:
I am gonna run a cluster active/passive with 2 nodes and 2 processors each. Do I need two SQL Server 2000 Enterprise 1 Processor License – Unlimited Clients ?
Kind regards, Pablo.
Q. How does licensing work for computers that run SQL Server 2000
Enterprise Edition in failover scenarios? A. Failover support, where servers are clustered together and set to
pick up each others’ processing duties if one computer should fail, is
available only in SQL Server 2000 Enterprise Edition, just as it was with
SQL Server 7.0. Failover support can be configured in one of two ways: a.. Active/active. In the active/active configuration, all servers
in the cluster regularly process information, but one or more take on the
workload of a failed server.
b.. Active/passive. In the active/passive configuration, one or more
computers in the cluster do not regularly process information but rather
passively wait to pick up the workload when an active server fails. All
active servers in a cluster must be fully licensed, according to either the
Per Processor licensing model or the Server/CAL licensing model. However, if
a server is strictly passive, working only while an active server has
failed, no additional licenses are needed for that passive server. The only
exception to this rule is if the cluster is licensed using Processor
licenses and the number of processors on the passive server exceeds the
number of processors on the active server. In these cases, additional
Processor licenses must be purchased for the additional processors on the
passive server.