Okay I am going to buy my first mac here in a couple days, and I don't know what one I should buy. I found a used 2009 MBP for $700, and a 2010 Macbook Pro for $800. Is the 2010 version worth the extra $100? What one should I get, again this is my first mac, so this is partly just a way for me to try out OSX, I am also looking at some Macbook Airs, and white macbooks. Thanks for looking