Sublime to the rescue (it's totally free - minus one annoying occasional popup)
Single best feature of the tool is bracket / comma / braces / etc.. auto completion.
I've switched to Sublime exclusively for Ruby, but still using Notepad++ for Powershell... however! Today I was referred to two excellent plugins which look VERY promising:
https://github.com/n1k0/SublimeHighlight (Export highlighted code into RTF or HTML - great for Demos)
and https://github.com/SublimeText/PowerShell (Syntax highlighting for powershell in Sublime)
A simple installation doc:
Completely unrelated image of the thing I'm building..Sous Vide Heating Immersion Circulator