I've finally come to about 95% complete on my enclosure, so I thought I'd share some pictures. Like always, it's taken a lot longer than I had planned, and it's amazing how complicated things get once you get into them. But I'm very happy with the result, and maybe it will give others out there some ideas about their own enclosures.
I wanted to be able to take the entire top of the cover off, and still be able to run the Mimeo. So you can remove the cover and replace it, and not have to detach anything. For this reason, I had to mount the keyboard on the base. All the cables going to the motherboard pass through the Mimeo platform through cutouts which are hidden beneath the motherboard. The amplifier board is attached to the inside of the rear-most panel, and connects to the speaker in the front, to the side of the keyboard. Behind the Mimeo, there are 2 large cutouts for the ventilation. I'm planning to glue some louvres in there, so you can't see back into the PEM section in the back. I'm also planning on cutting out holes in the acrylic cover to allow the acrylic cover to be on there while you run the Mimeo, and still not cause any overheating. I've also got to cut out the sheet of black acrylic to go around the keyboard area, to frame it. All the enclosure is held together with bolts which screw into metal threaded inserts, so they can be screwed and unscrewed multiple times without wearing out the holes. You can find these cheap on ebay.
The whole thing is sitting on some turntable-type aluminum feet with rubber on the bottom, which I think finish the case off nicely. The plugs for the audio in (for the ipod) are in the back, so they're out of the way. The power switch not only provides power to the mimeo, but also to the secondary power supply, sitting under the mimeo platform, and this powers the fan, amplifier, and the Mike Willegal PS/2-Serial board.
I'm planning on finishing it with a basic shellac finish, which will be just slightly darker than the unfinished wood you see on it now. It also adds a nice chatoyance to the wood.
So here are the pictures!