OK so I have received and fitted the latching switch for the HDD PSU. And inside. I was going to put that here. Then realised it was metal. Chromed metal, and I don't have a 12mm drill bit. I don't think I would risk that either, risking the chrome finish and most certainly the plastics inside. PSUs socket is fitted. So the back is basically finished now. The last piece of modding (well, apart from mounting the board) is just cutting this thing down after modding it and deleting the USB3. Because that is going to the rear PCI bracket on the case. I will also need to connect my power LED (apple one on front IO of case) to this to get it to light up. I may delete the USB2.0 header too, and just have the LEDs etc but we will see. Doubt I will ever need the front audio either, but I will decide once I have it apart again.