Hey folks, A friend and I are both lifelong PC users. We're both looking to make the switch before graduate school (Fall of 2009). Two questions: 1- What advice/expectations should we have for making the switch from PC to Mac? What are the absolutely 100% necessary software apps to get? 2- We're both torn between the Macbook and the Macbook Pro. Do you think the benefits of the Pro justify the price? Thanks!