need company that build a Professional window client server Daytrading System

I would like to built Professional Daytrading System   but I do not know how to start in many several aspects like what kind of OS should I use or what kind of data base or what kind of server capabilities > could you please suguest for me a Professional companies that do such application (windows appilcation) > I searched the internet but i could not find any
marketickerAsked:
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bpmurrayCommented:
This is a pretty good site for day trading information, and it has a short list of software: http://daytrading.about.com/od/software/

A couple of other popular packages are these: http://www.tradingsolutions.com/ and http://www.realtick.com/

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