Hi guys! Well, I think it's time to treat myself to a little upgrade... maybe. I think... I haven't decided yet. Currently, I have a revision B MacBook Air - 1.6GHz, 2GB RAM, 120GB HD. I'm really considering an upgrade from my current MacBook Air to a newer one. Here are the options I was thinking: Rev. C: 2.13GHz, 2GB RAM, 128GB SSD Rev. D: 1.86GHz 4GB RAM Since I haven't played with the newer MacBook Airs, which one is a better choice? In other words, which one is faster and has decent battery life? I'm not a very heavy user. This is a laptop that is always being used for school work and the whole system runs my business. So, I use Safari, Mail, and MS Office '11 quite a bit. In addition, I use the iPhoto suite for editing photos. I use Photoshop here and there when necessary, but not often. The only thing that chases me away from the Rev. D. MacBook Air is that there is no longer a backlit keyboard. My eyes are as blind as a bat, so this would be a total loss for me. I wish I could somehow retrofit a backlit keyboard. Any pieces of advice would be much appreciated.