I know PowerShell-Users love the pure stuff, and they love the console. Except sometimes it is nice to have some bells and whistels to help with object models and intellisense.
This is why PS+ includes two things: a Minimode and - huh? - another Minimode!
Minimode #1 can be invoked by CTRL+M. It turns all toolbars off and makes the console semi-transparent so you can see what is going on in the background.
Minimode #2 can be invoked by ALT+SPACE. It leaves the console as it is but hides all toolbars. Press ALT again to get them back.
Here are some more tricks. In Minimode #1, you see a red button in the top right corner. Pressing it while holding SHIFT will exit Minimode. When you hold down while pressing CTRL, you actually minimize the app. And right next to the red button is another one that will keep the window always above all others.
Simply press ALT to show the main menu. In its View menu, you can adjust opacity. This setting persists.
Don't know PS+ yet? Go grab it: http://www.powershell.com/download/psp1.zip. Unzip, run. It's as easy as that. And it's free for non-commercial use. Enjoy!
Hungry for more? The latest (non-public) build is always available here: http://www.powershell.com/download/psp1new.zip. And the change log with the latest additions is available here: http://www.powershell.com/mantis/changelog_page.php.