Pretty good build I however would change the CPU to an i5 2500k if it is for gaming purposes only. If your rendering and what not then keep it. Instead of getting 2 570s why not get one 580 and then get another one once you start to need a little boost. For the SSD I havent heard much about Mushkin I would stick to a Crucial M4. You also dont have any RAM stated in your OP. Im not a WD fan I would go with a Samsung F3 or Seagate Barracuda as well.