Sorry if this has already been beat to death by others, but I am in desperate need of a MacBook. I am a relatively new Apple user (Bought the new iMac when it came out...so a month or two, lol)...so I'm not familiar with their upgrade process for OSes. If I go buy a MacBook today, I heard that I can upgrade to Leopard at a later date for 9.95. Would this mean I would have to take the MB in to the store for them to do it, or would they give me the install disks? Also, is Mac similar to Windows in that they have "full" and "upgrade" editions of OSes? If I will have to just do an upgrade on top of Tiger, I want to just try to hold off until it comes pre-installed.......although my crappy HP laptop is dying...the bottom 1/3 of the screen is not working, lol.