What all of you are looking for is Executive Office Suites..... Just search for that in the city that you want. Most are month to month and provide everything needed...
jack since you are a guru of post facto chart marking I could see why you would not see the merit of speaking to a clearing firm... you would have no need for super fast reliable quotes or great and consistent execution connectivity and backup. Not to mention some pretty smart traders wandering around your building. among other things.
I was referring to this one. http://www.city-data.com/neighborhood/Briarcliff-Maplewood-NJ.html Jimmy Cramer lives here. I know my swanky north east suburbs. Correction: Cramer lives in Summit, NJ. Someone I know lives in Briarcliff. I'll think of it.