Clusprep (Microsoft Cluster Configuration Validation Wizard) finally released
It seems like it has been in beta forever but you can now download the RTM version of the Clusprep (Microsoft Cluster Configuration Validation Wizard) tool. The Microsoft Cluster Configuration Validation Wizard, a.k.a. "ClusPrep", is a validation tool that does a complete system inventory and runs focused tests on servers that are configured and ready for Microsoft Server Cluster installation (in other words, before the servers are a cluster). ClusPrep will also run the inventory and many of these same tests after clustering is installed, however, because of their potentially disruptive nature, most storage tests are not run if the servers are already a cluster.
Download it here