Maybe start with a Rosewill L4500 because it's cheap and comes with case fans. Maybe the hard drives will fit standing up, maybe not. Add a power supply, 12V for WD EasyStores and 1.5A for each drive, plus wiring and connectors. Also need to wire up the fans. Add a USB hub. Secure everything down somehow. Maybe design a bracket for everything and 3D print or mill it.

Ok, so I have heard a lot of people's opinions on this.  Now, lets get this out of the way, **SHUCKING IS NOT AN OPTION**.  I have nothing against people who shuck, it just isn't for me.  With that said, does anyone here know of any products that are like this (say for around 20 externals), or would a custom case be best?  Can you point to any real life examples?

External Drive Holder