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Hackintosh
 
Got an old PC or laptop that you don't use any more?  Do you like to tinker with computers and have a little technical skill?  Build yourself a hackintosh!  I've provided the very basic steps below, the details can be found on the websites.  Also below is an example hackintosh screenshot.
 
  • Download and install the latest version of Ubuntu Desktop (link).  Ubuntu is a popular, free Linux distribution.  During the install, choose to use the whole disk.  This will wipe your hard drive clean, so make sure you don't need it any longer.

  • Download and install a piece of free software called Cairo-Dock and its plug-ins (link).

  • Pick a theme in Cairo-Dock.  There will be one called MacOSX which is the closest to the dock on a Mac, but my favorite is one called Clear.  Configure Cairo-Dock to open at start-up.

  • Put your favorite apps and accessories on the dock and you're done!