Hi, I'm just entering a private high school, and I am looking at buying a new mac to replace my HP craptop. I was wondering, if I have about $1,500 to spend, which would be a better way to spend my money, a new MBA or MBP? I probably will wind up upgrading it as much as I can, and I will be taking the Education Discount. Also, it will be used for some Cinema 4D, word processing, and photo work. Also, I need as much battery life as I can get. On a separate note, how much of a difference does CPU speed make vs. RAM speed?