Anyway, you can see that quite a few things are changed by now. I figured it would be easier to make a wall for the base plate and punch holes in it for the backports, so I did that.
It might be interesting to note that the PSU isn't secured by any screws at all (although the metal bracket supporting it at the back is secured by screws). I don't think it has any screw-threads on the bottom surface and I don't feel safe tapping new screw threads on my own, so that will have to do for now.
The 2X80mm system fans have now been replaced by a 1X120mm fan, which should be quieter. Since the HDD cooling section profile is larger than 120X120mm, I ducted the fan to allow airflow to spread. This is a dumb idea of course, I just put it in because I didn't have any better ideas, until a friend pointed out an obvious fix (I still can't believe I didn't think of it earlier; see next update). The fan plate is supported by protrusions on the base plate (a little hard to see in the image, look near the top edge of the base plate).
Along other changes, the HDD cage was redesigned yet again; It now has bottom support in addition to side support. Both old and new designs are simple folding designs that can be made from a single sheet of metal, with no assembly required. I'm still thinking of ways to reduce drive noise and vibration, this will probably be handled with the use of anti-vibration damping strips but I'm open to other suggestions.
The side walls and top mesh cover have not been modeled yet, I'll get to it eventually.
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