I have seen many videos such as Smooth multitasking between Mac OS, Linux, and Windows XP � BlackMacBook.com Videos and YouTube - Fast OS Switching on MacBook where they can run Mac, Windows, and Linux, all by running Parallels, and just tapping the side of the screen. I just ordered my black macbook the other day. I want to know how to do that when I get it. Can someone give me specific instructions? Do have to have windows installation discs handy? I don't really know what I'm doing. Thanks for the help.