So I recently started programming games in Xcode for the iPhone. I have an old macbook and I want to upgrade but I don't know what computer to buy. I am thinking of the Macbook Air 13" 8GB 128GB(Plus a 64GB SD card), and an intel i5 processor. Or the Macbook Pro 13" 4GB 128(Flash Storage + and SD card), and an intel i5 processor. So which one should I get? Please don't say MBP retina because it is a bit out of my price range... I also like to play some games like Minecraft and COD4. Thanks!