Hey everyone, I am pretty new around here and absolutly 100% new to Apple computers. I have been browsing around the forum and noticed that a lot of people seem to have factory stock set ups on there macbooks and macbook pros. What I mean is..2.0GHz, 512 , 80g for example. I am going to be purchasing either a Macbook or a Macbook Pro..have not decided yet, and I was wondering what the Pro's and Con's of customizing the computer before buying it from Apples website? Thanks!!