I'd like to upgrade to OS 10.3, but I don't want to lose the settings for my installed programs which are stored in each user profile. Can I install 10.3 from the CD just like a regular update which will update the installed programs and add new features without damaging anything? Does a full support contract come with the purchase? I was surprised that AppleCare for the computer stops whenever a problem arises related to a network or anything that requires use of the root user. 😱 At least the people at the Apple Store aren't like the stubborn ones on the phone and will really try to help with any Mac issue. 🙂