If you are writing any scripts for PowerShell I'd recommend looking at PowerGUI Script Editor. It's a free comunity project that has some really nice features you now expect when writting code such as intelli-sense, syntax highlighting and the ability to debug your script.

The overall aim of the project is to create a GUI for Windows PowerShell where you can manipulate objects in PowerShell by pointing and clicking. For example there is bundled functionality to list all process running on the current system invoke actions on these processes such as stopping the process. Personally I just use the script editor to edit my scripts and as I have customized my PowerShell as described in a previous post, it easy for me to then execute these scripts as I need.