I'm thinking of switching from windows to a mac, and have a few question about the new MacBook's. 1.) Will the .4 GHz in the 2.4 GHZ Macbook really that much faster then the 2.0 GHZ MacBook. I will only be using it for the Macbook for school, music, and watching a few movies. 2.) Should I upgrade the Memory from 2 GB to 4GB, since I will only will be using for basic functions. Or will it make that much of a difference. 3.) If I go with the 2.0 GHz MacBook will it be able to run Snow Leopard, if i choose to upgrade? I know this is a tough question since snow Leopard has not been released. Any answers will since I would like to go buy one to night.