U R GOOD.
THe PSU pulls air out of the case, and exhausts it out the back. A benefit!
If you are worried, flip the thing over. It's setting on rails, so it's not ON the bottom of the case.
Monster Case, Dude! What kind?
Do yourself a favor, and get a aftermarket CPU Cooler. I would recommend a Ximatek Dark Knight, or Mungen Rev2. Look on THG for reviews. And have the fan blow through the cooler fins, and towards the back fan, out the case.