All of my current consoles are out in our living room (as well as a Dreamcast) while most of my older consoles are hooked up in my office:

Uh ... it's a lot messier than everyone else's, but I make up for it by having everything meticulously labelled (both the a/v wires and the a/c adapters)! Not everything there is hooked up though. The Saturn isn't, one of the NES systems isn't and the Coleco ADAM hiding under my reference bookcase isn't (I lack the required printer to turn it on). Everything else is either hooked up, or pretty easy to just plug in and start up.

Also, Ronn and I have the same a/v switchers!

edit: Boy that photo sucks. Sorry. :?