I can see that being very difficult for someone who isn't computer savvy. I would hope they would release some helper app for folks who aren't the best computer users.
its nice beacuse right after the install of the OS SP2 is installed(it turns your windows XP SP1 CD into a SP2 CD), you could always just install SP1 then install the SP2(just burn it to disk or something for safe keeping)
No need. Just download the SP2 updater/installer and burn it to a CD. When you have to reinstall Windows (and you always do) from a pre-SP2 CD, before you put the thing back online you just install SP2 from the CD.