I would recommend getting a full tower case as that is a large motherboard and most probably wouldnt fit, its not worth taking the risk of buying the case and having to send it back.
You really probably ought to look for another board. Its over priced and I am not sure what the point of having 3 PCIE slots is when the last two will run in x4 if all are used. Certainly not for SLI or Crossfire