I want to sell my two MacBooks, white and black, both PPC, but want to wipe them clean before i give them away. How do i do that? also, on one I am running the Windows for Mac Suite but it wouldn't let me transfer to my new MBP because it says the new one doesn't support PPC based applications. How can i get my Windows stuff on the new one without paying Microsoft more money for a new download? thanks guys!