Need to set up SQL Server 2005, SQL Server 2008, and SQL Server 2008 R2 2-node cluster on Windows 2008 R2

I need to set up SQL Server Active/Passive 2-node Cluster on Windows 2008 R2 servers (not hyper-v).   I plan to install SQL Server 2005, SQL Server 2008, and SQL Server 2008 R2 on this cluster.  Can all those versions be on the same cluster?   What are some good articles/links for setting up this type of cluster?

Here are the links that I have found so far:

Before Installing Failover Clustering http://msdn.microsoft.com/en-us/library/ms189910(v=sql.105).aspx

Failover Cluster Step-by-Step Guide: Validating Hardware for a Failover Cluster:http://technet.microsoft.com/en-us/library/cc732035(WS.10).aspx

Thanks.