Got a brain full of Windows 8? Can't stop obsessing about it? Fret not -- as of 8PM PT this evening (just under eight hours from now), you'll be able to download a copy of the Windows Developer Preview to your machine from dev.windows.com.
Per usual, it's recommended doing so on a separate partition (or a spare machine altogether) in order to prevent unforeseen conflicts, and having a stiff glass of patience waiting nearby. Redmond's servers are going to be hammered. Windows Dev Center.