I am about to buy a 2.4" 2.93 GHZ iMac. I could probably do with a 2.66 but i am making sure I am covering all bases plus I want to keep it for at least 3 years. I am wondering whether I should order the standard or the better graphics card? I don't play many games (other than The Sims 3) and don't do anything video editing wise etc. Will I be ok with the standard?