I am almost ready to buy my first Mac. A couple questions first. The computer would be used for...browsing the internet, pictures, downloading music, watching movies and burning. Does the G5 iMac's graphic card hinder any of the above applications? Is there a difference from a top end card to a lower end card when viewing video over the internet or watching a DVD? I don't know much about graphic cards, only that you need one of the best to run some of todays power hungry games, but I'll stick with my consoles for gaming.