Off to college this fall and though my Late 2008 Unibody Macbook is still kicking, the battery is totally gone and it feels completely bogged down (and very little GB left). Regardless, it's time to get a new one. What I'll use it for: Lots of web surfing, YouTube, streaming movies etc, essays, and perhaps the occasional Portal 2 gaming. I was really looking forward to just getting whatever the new MBP was going to be, but naturally Apple has ignored my prayers, so I'm thinking of the new MBA 13". Actual questions: 1. RAM - how much and why? My Macbook now has 4GB and plays Portal pretty well (well, haven't played in ages). Will 8 GB make it run smoother? It did pause somewhat often. 2. Processor - I'm having trouble understanding why they would downgrade the standard GPU to 1.3 Ghz from 1.7. Should I upgrade that for my usage? Does it matter? *Example of slowness: I'm watching a live stream from E3 and iStat is saying that I'm using around half of the CPU (it's 2.4 ghz) and if I do the four finger swipe it freezes for a second.