Here's my current setup....
The desk is where I swap out my modern and vintage machines periodically (obviously). Right now the 2015 iMac and Tandy 1000A are setup as I'm recording Tandy youtubes at the moment and I've been learning the Apple ecosystem as I use it at work (and because I do use Garageband for music sometimes, and the Mac seems quite good for recoreding in BandLab - that's what the Line6HD500 processor under the desk is for).
The Laptop rack is where the laptops are when I'm not using them, so they get showed off. On top of the rack is my DFI MediaBook 486DX2 (basically a rebadged NanTan 9200M), a BSi (NanTan) FMA3500C, the NEC Versa 40EC, NEC Versa V/50, and the NEC Versa P/75 at the bottom. My NEC Versa M/75 is next to it because that's the one out of the lot I probably use the most.
This is "holding" for other systems. On the top rack we have the broken Versadock which I might be cannibalizing soon. Next to that is the Blue Lightning Compaq Deskpro 386s/20. The second shelf is my 17" Dell CRT Monitor and 14" Micron CRT with the awful stain on top. On the bottom is my main 486DX4-100 system, and 2 other PC's in the next photo. Also on top is the "Beige Beast" InWin D500 mATX desktop that runs Linux.
Bottom of the shelf Left to Right - 486 DX4-100 main with the monitor on top (14" SVGA KDS I believe), next to that is the Moondog 486 DX4-100 tower with the digital readout, and next to that is my Dell Precision T5400 Linux Mint machine.