Quote from Spectre2007:
screen 1 - data vendor A - monthly/weekly/daily/60 minute/240 tic
screen 2 - data vendor B - 60 minute/ 240 tic/indicators(fine resolution)
screen 3 - order placement
screen 4 - scrolling real time news
screen 5 - cnbc
screen 6 - bloomberg
screen 7 - cnbc asia/europe
screen 8 - order placement redundancy
screen 9 - equity charts flash rate (100's of charts flashed every 15 seconds
screen 10 - dvd/visualization/music/atomic sync clocks/economic calendars
5 mobile broadband cards
2 hardline internet access
mobile phone web trader
premium air filtration/conditioning system
comfortable seat
natural daylight/bio metal halides if natural light not possible
supplements/vitamins/excercise/meditation
Its best to know what the market is doing, since the market references itself along multiple timeframes, and will stall at price points that aren't evident in one timeframe but evident in others.