Well, if you are wanting to record or work with HD Video, your disc speed needs to be at least 7200rpm over the 5400 in this unit. I would go with 10Kif you can afford it but 7200 is a bare minimum. Preloaded with Windows 7 64 bit, it should work for you. But as with everything, “don’t take my word for it”, Blackmagic are the guys to ask.