Hello, First of all, I would like to say that I am student, ordinary user of Macbook, not involved in any professional activities with my notebook. I am about to purchase the new Macbook Air 256, 2.0 i7, 8GB ram. I am looking for an opinion whether I would use these 8GB since macbook air has only one fan, and even I do something burdensome and use these 8GB, the fan would not be able to cool off the notebook. Should I buy the 8GB or they are useless. Thank you in advance for the advice.