Here´s a nice article from the Microsoft's Clustering Team Blog about how to create a cluster on Windows 2008.
Windows Cluster 2008 provides multiple ways of adding a disk to an existing cluster.
This helpful article from the Cluster Guys will walk you through all the available choices.
Check it out here....
and last but not least,
Robert Larson has done an excellent post on how to configure Hyper-V Clustering.
You can find the step by step guide here....
