GUI tool For PowerShell

IMHO PowerGUI is the best GUI tool for PowerShell.

You could use

Windows PowerShell ISE

to write PowerShell commands in a user friendly manner. Is that something you are looking for?

Beware of the version of SharePoint you are targeting. If you want to write scripts for SharePoint 2010, you will have to stick to an editor that use .Net 3.5.

If you use any editor that runs with .Net 4 or later, you won't be able to use SharePoint commands. This is due to the SharePoint limitation that make it not works with .Net 4.

As I'm running SP2010 on a Windows 2012 R2 server, I can't use PowerShell ISE (which is great with W2012!).

I fallback to PowerShell Plus, because it does not requires .Net. I only have to tweak the configuration file of the soft (C:\Program Files\Idera\PowerShellPlus\PowerShellPlus.exe.config). I forced the program to works on .Net 2.0 runtime:

<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v2.0.50727"/>
</startup>

if you want a GUI app use PowerShell Studio 2012 by sapien, i created many PowerShell GUI App using this IDE

and if you want an IDE for coding and debugging use PowerGUI its amazing or ISE from Microsoft