I'm about to pull the trigger on a new MP (yeah, I know -- see my sig). and I'm thinking I should go with the 2TB option (I have no use for a 1TB drive that the stock model comes with, and the price delta is less than the price of a new 2TB 7200 rpm drive). I've been a WD fanboy over the years -- does Apple use WD for these drives exclusively, or is it a pretty much a lottery when it comes to whatchagonnaget?