This is my home-grown 17 screen trading setup.
I aggregated to 17 screens over the years, not all in one shot. On a shoe-string budget. Whenever Fry's has some LCD monitors on sale, and I felt like it, I would go and get one. Mix and match. Different makes, different sizes, different resolutions. I still use 4 old 19/17-inch CRTs acquired before 1999. No fancy multi-mon mounts. Just lighter LCD mons stacking on top of big old sucker CRT mons. Older LCDs are 4:3 ratio. They don't sell them any more. New ones are all 16:9.
3 different desktops: 1 drives 6 mons, 2 drives 4 mons each. 1 laptop with a 22-inch ext mon. 1 laptop solo.
Both Comcast cable and DSL on wired/wireless routers for redundancy.
I am a visual trader. Lots of charts mostly. TradeStation (I lover their charting capability. Schwab's StreetSmart Pro (CyberTrader went to hell since Schwab bought them out. Now it is a piece of crap. No reliability. Their server can't handle fast markets). Realtick (I love) for order entries only. Charts from Realtick are okay. But no "wow" factor.
I can't stand tidiness. Cables and cords everywhere. It's my nature. I am formerly a computer technician, plugging and unplugging things all the time. I don't bother to put the side panel of the desktop back on once taken off. Being functional is the most important thing for me. Not the looks. My trading room looks like a computer lab than a Fortune 500 company executive's office.
Correlating which time-frame of which stock on which screen is messy. But I get used to it.
No Jack Daniel. Drinks and trading don't mix for me. No view (how I wish...). All walls on 4 sides. Not even a window. Someday maybe. It's me and the market. Radio news over the Internet. TV video feed onto one of the PC screens occasionally, if I feel like it.