Are you excited and scared all at the same time? You should be, particularly if you rush off to the following link using a PC you use everyday. Best to use a 2nd PC or use your co-worker’s while they’re at lunch. When you choose to download the Windows 8 Consumer Preview, the setup will check to see if the PC can actually run the preview, and then download the correct version of the installation bits.
Want to know what the requirements are prior to downloading? Check out the FAQ:
The download link: http://windows.microsoft.com/en-US/windows-8/download