About to purchase new MBA before black friday runs out in a few hours in UK ,what I dislike the most is fan noise. Which of the new versions setups is best for eliminating fan noise, which is quieter. Can someone run a test to see if you can watch HD and full HD without fan noise after a few minutes. Would appreciate answer from those who have the machine. I am thinking 13 inch as 11 looks cool but screen too small and tiny fonts/res.