Decased and mounted the Motherboard and Hard drive this weekend. I am noticing I will need some ventilation. I am thinking about using a 3 inch hole saw to cut a hole in the bottom of the cab and re-using the computer fan and fan scoop to point it towards the mother board and heat sink area.

I am also looking for a way to plug this thing in with a regular D-cable (three prong computer cable) I have seen some people have some solutions here but I forgot what it is called to be able to search for this.
I don't want to just drill a hold and snake a cable through. I kinda want it to look nice seeing it is coming out a lot better than my wife had thought (she had no faith in me)