VMWare and PowerShell References

I am a beginner with powershell and VMware.  I am looking for references, how-to books, tips -n- tricks for learning powershell.  

For example, I need to create a list of what is stored on each datastore.

The rookie would appriciate any guidance with learning how to use powershell with vmware.

I am using vmware 4.0 u2 now.  Soon the planning for upgrading to v5 will start.