You will need to move the dvdr outside the case first of all. Then any block should fit. I am unsure, but an Intel block may bolt into the four holes located there. As there are no molex connectors to tell the h20 system that the mini is on, you will need to mod it so that the system runs when you turn on the Mini. I suggest a 120v system of course. The Aquagate I just reviewed would be ideal here with some modifications. Its pcb board will fit in there with the dvdr removed. Good luck and be sure to keep us posted!