after looking after a friend's computer (with win me) for several months, i got so fed up that i put pclinuxos on it and have hardly heard a word since, except relief at not having to nurse the os. if all your users are doing is surfing, emailing and playing around with office software, you can put linux on their machines and the only difference they'll notice is that it doesn't crash at the drop of a hat.
Lol! I did that with my younger (72 year old) sister, with the same results. When my family come to stay they have use of my computer and never even comment that its running PCLinuxOS rather than Windows