There aren’t many good computer cases out there, here is an example of one:
This case mounts the hard drives from the side, so you can easily slide them in and out. However, there was obviously no quality control, as one of the SATA power connectors can not reach the first hard drive. The picture shows as far as it will go. Just so you know, I did not purchase nor recommend this case. I was just putting it together.
Also, Dell apperantly uses Asus cases for the GX620 small form factor:
Where’s the cupholder?
I have plenty of broken CD drives here that we can convert! We could also maybe install a fan underneath it to cool, or even a heater!