Im purchasing my first macbook (MBA) next week and while reviewing the specs of the MBA, I have a few questions for the community. 1. Im a college student that will have multiple tabs open and streaming youtube/netflix in 1080p. Will the 4GB of RAM be enough? 2. I've heard rumors that a Haswell retina macbook pro is right around the corner. I have an ipad and im a sucker for retina displays. Should I wait an unknown amount of time or simply go through with the MBA purchase? 3. Is a 128GB SSD enough for a student or should I purchase the 256GB model? Any responses will be greatly appreciated. Thank you.