PowerShell

Tools/Extansions/Cmdlets/Power Packs:

PowerGUI
PowerTab
PowerShell Community Extensions
/n Software NetCmdlets (there is a free part)
SAPIEN Cmdlets
VMware VI Toolkit

Books:

PowerShell Course Book

Links:

VMware VI Toolkit Communitie
Microsoft PowerShell Toolbox
Microsoft Scripting with PowerShell
Microsoft PowerShell

Dashboard

http://www.codeplex.com/Poshboard