My sister wants to buy an iBook but does not want to spend $1100 for the new version. Instead we found a brand new G3 800MHz at macmall.com for $740. I have no idea if this computer is ok for her, all she does is email, aim, word, and a few basic games. She will keep this computer for at least 3 years. Is this a good deal or should she save up and go for the G4. Thanks.