GUI – POWERSHELL ISE AND POWERGUI
– Powershell ISE comes with default powershell installation, good for easily starting remote powershell session on server
– PowerGUI Script Editor – I recommend this to create scripts.
– PowerGUI – good for quick view on active directory/domain controllers/mail server – you can run tasks like what hotfixes are installed on our mail server or what services are running on one of our domain controllers and what state each service is in.