So for my first build (http://pcpartpicker.com/p/3vZcz) I have been planning to put a 120 gig SSD, and a 2 TB drive. I have 2 hard drives in my Dell (250 and 160). I'm wondering though, if I don't decide to buy the 2 TB, how hard will it be to partition it later for main use? I'm not that experienced in partitioning drives yet.