Better yet, try to figure out why you even need that much equipment in the first place. If you just have it all because it's "nice to have", you might want to reconsider your priorities in life. Try saying to yourself "Do I really need this?" when you look at something, and if you answer truthfully, your desktop will begin to look much better.
I do alot of multitasking and I'm really good at it. I work better with tons of monitors.
The touchscreen makes it easier, as I can open programs onto anyone of the monitors with one touch.
The imac is kinda worthless, but I also got it to learn a alittle about osx, and possibly to write mac games (It's the one unnessecary item, but I won't remove it, sorry).
The wall mounted item is a file server. Not going to remove.