Hello, im looking to buy a macbook pro. However im really confused which one to get. I i will be using the laptop for music production in Ableton Suite. Do you think it would be ok to get the 2.66 ghz core 2 and upgrade to 8gb ram taking the price to about £1500 or would a 15 inch 2.4 ghz with 4gb be a better choice? Any advice is much appreciated as it is alot of money and i want to get the best i can with my budget of around £1500. Thanks in advance.