and to up-grade to Lion I first have to order a disc, if I'm reading right, to up-grade to Snow Leopard before I can get Lion on line. $60 for the two. I do now work on my mac mini, it is just for mainly the web, all works well for me now for what I do. The only trouble I have had was with Kindle for Mac, the one in the App Store would not work on Leopard but Amazon had one that would tho I really had to look hard for it. So should I up-grade, what are the advantages?