Up top is a Gamecube, PS1, Dreamcast (with broadband adaptor), Genesis, N64 and Super Nintendo. Below that is the PS2 and Xbox. On the bottom is a Sega Saturn on the left, and the A/V and component video switch boxes on the right. There are also clips behind the Gamecube holding the optical connectors for the PS2 and Xbox sound. Those have to be plugged in by hand for two reasons. One, I don't have an optical switch box, and two, I shudder to think how much an optical cable will cost that is long enough to travel all the way around behind my TV to my receiver.
Also note that I'm playing Knights of the Old Republic at the time this photo was taken. :)