[midas007]

Yup, KeyRemap4MacBook and PCKeyboardHack are great. I have:

  - MBP Caps Lock remapped to F19, which opens highlighted URLs in the browser instead
  - Brightness, Backlight Brightness and Volume mapped to quarter steps
  - Eject mapped to Lock Screen (Ctrl-Shift-Eject)

The KeyRemap4MacBook maintainer is helpful and awesome, so I would suggest a 10 €/$ donation if you like it.

https://pqrs.org/macosx/keyremap4macbook/donation.html.en

[_matthewpalmer]

That last one is a great idea considering my MBA doesn't have a disk drive, but my wireless keyboard has an eject key. Thanks!

[midas007]

Thanks. Also check out CheatSheet if you're like me and can't remember all these magic keyboard Konami codes.

http://www.cheatsheetapp.com/CheatSheet/ (free)