Hey guys, I've been reading the post for a week now, and decided to ask a question. Now I know I'm new, so I hope I'm not asking something trivial and annoying for you all. Anyway, here it goes. Currently I have a Early 2011 13" MacBook Pro (2.2 Ghz i5, 4GB RAM) running Mountain Lion, but I'm considering upgrading to something more portable, and I thought what is better than MacBook Air 11". So, I've already read that 1.7 i7 upgrade would decrease the battery life, so I'm not really considering it. What I might do is to get 8 GB of RAM, but I'm not really sure if I need it or not, at most I run Firefox, VLC and uTorrent at the same time. Would you recommend me getting the 8GB or would 4 be just enough? I also want to upgrade the OS when new ones release. I'll be paying a good amount of money and I don't want to spend it on something that might not run new OS in a few years. Also, I've read that Apple might downgrade the CPU on 24th, so should I buy while it's still 1.4 i5, or at least wait until they've made the announcement? I don't care about the 12" Retina MBA. Also, this computer will be my primary computer. Again, sorry if this kind of questions were asked for hundreds of times, and also I'm sorry if I messed up the writing, English isn't my first language.