No TV? How will you survive without all that crap, and so much more free time?
I had a similar wire 'rack' before I obtained a server rack.
Worked well, for a PC and a couple components.
I added a component music server, UPS, and a rack-mount power strip, and decided to go with a 19" rack. I have plans for more components, and a replacement 24" deep AV rack (server rack huge).
You can pretty much mount anything, in a 19" rack. Here is the back of my current rack:
Keep your cables long, so the shelves (or future rack) can be pulled out easily.
You could consider a preconfigured rack, that includes the door, removable sides, several shelves, and casters. Offered by most rack manufacturers (Middle Atlantic, Chief, Sanus, Omnimount).