Right tools for the wrong job
Here we have THE right tool for the job. All I will say is that disc cutters are the best thing you could ever own. Everyone needs a Dremel in their tool box; end of discussion.
Here I've holed up spaces for the power and reset switches and on the adjoining face I have a slot for a dual USB port liberated from a rear PCI bracket assembly.
Here is the slot for the ASUS DVD-ROM; looks rough, doesn't it? - Well, it is, but that is solved thanks to my ingenious use of every day household objects like document binding clips!
Holes in the bottom to secure the IKEA motherboard tray. I used thinner bolts this time, because that's all I had in my drawer of bolts that fitted.
Fan holes on top; notice that there's only three compared to the four in the initial prototype? - Well, good, because I decided I liked three better!
Now begins the transfer of bits from my awesome GIGABYTE 3D Aurora case.