Using multiple touchscreens

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VB

hardware

im looking at using touchscreens for some software that i'm currently experimenting with. The plan is:

data comes through to a tcp port. Depending on the port the data has come from, it displays on a certain screen. the information displayed within a form on a textbox.

the textbox has events such as close/save to txt file etc.which is a simple context menu on click event to the object.

I'm thinking in terms of hardware rather than software. Is there anything out there that will allow touch on separate screens? I've got a bad feeling I've got to write a program that will accept input from the separate touchscreens which sounds like a royal pain in the arse.

I can make a simple serial controller for each screen, but less hardware would be better.

Can you think of any other way?