Hi all, I am looking at getting a new 13" pro. I can't decide wether to go with the base model with i5,4gb,500 or the i7,8gb,750. The latter is 300 more and I don't know if the processor upgrade is worth it. I don't care about the extra 250 gb HD and I know I can buy extra memory do cheap. What is everyone's thoughts? Thanks in advance!!!