If you need a solid workstation for critical work, don't get an Asrock board - in fact, don't get a consumer board.
It's simply not designed to take that CPU and ECC memory.
I would pick up an actual workstation board such as a Supermicro, or Asus WS series.
I would also steer clear o f that Sandforce-based SSD, and go for a Samsung 840 Pro or Crucial M500. Depending how vital your data is and how much you want to spend, better models are available, but I certainly wouldn't go with a Sandforce drive in any situation.