So I've had my current MacBook Pro for a little more than a year now and I will be selling it to my brother as he and I are both going off to college. He doesn't want to pay tons of money for a new Mac, so I told him I'd sell him my MBP (upgraded from 4GB of RAM to 8GB RAM from Crucial and got AppleCare till 2015) for $1,000 and I'd use that money along with a little that I've saved up to buy myself one of the new Air's. I chose the Air over another MBP for two reasons: I will be commuting to school by bike, going up and down hills and the less weight, the better, and two, the battery life... since I'll be spending the majority of my time at the school and I don't want to have to carry around a power brick, long battery life is essential. Anyways, so I'm going to be ordering my new Air this weekend (tax-free weekend, woohoo!), but am having difficulty deciding between the 256GB SSD or the 512GB. On my MBP, I just deleted a bunch of old things I've downloaded over the last year of ownership and am currently using up 147GB of space. This is also with a 35GB bootcamp partition which I will also be putting on the Air when I get it. I'm kind of leaning towards getting the 256GB SSD as it's considerably cheaper, but I also plan on keeping this Air for at least 3-4 years. I could always get an external HDD, but in my opinion, they can be cumbersome. The main reason I'm swayed to get the 512GB SSD is because I know I will never have to worry about storage... I wouldn't have to fiddle with an external HDD or have to worry about needing to delete files that are taking up to much space. I just can't decide... Any input or suggestions would be great. Also, I don't know if this would have anything to do with it, but I am majoring in computer science for whatever that's worth.