I just had to sharea this one very cool thing:

“Drop Down”, Quake-style command prompt for Windows – Instructables – DIY, How To, tech.

It’s a Quake-style console for use in Windows. Now you might think why would you want that? Well it autohides as soon as you click anywhere or ALT+TAB to another program, but keeps running in the background. It also gives you the console the moment you press WIN+~ (tilde)

I personally grabbed the file from: http://www.mediafire.com/?0e3kxld19qd

Works great, and I highly recommend it to people who, such as myself, frequently use the DOS-prompt… err I mean the Quake-console ;)