Here's my setup. This was a refrigerator at one point at a local Starbucks and I was allowed to save it from the dumpster. It's moderately thick glass all around and the front 2 panels slide sideways to access the inside. The whole front also opens up like a big door. I cleaned it out and got new florescent bulbs for it and it's been a great case ever since.

I lined the bottom with a thick-plastic bubble-wrap type material.

There's a few more controllers elsewhere, these are just the better ones that are in good shape. Most have been cleaned and had their sticks replaced.

The top two racks just happen to be the perfect size for storing Xboxes. The bottom of the Xbox is in a recessed area of the metal rack and a lip goes around each one so they can't move around up there.