Rednet and touchscreen help

I'm not exactly sure if this is rednet but I know it is going to be involved. I have a program that opens a simple 3x3 frame door that just slides up and down.

print("	 Options:	    ")
print("			    ")
print("	   Open		    ")
print("			    ")
print("	   Close		   ") 
term.setCursorPos(1,7)
input = read()
if input = "Close" then
  for i = 1,3 do
    redstone.setBundledOutput("bottom",2)
    sleep(1)
    redstone.setBundledOutput("bottom",0)
    sleep(1)   
  end
elseif input == "Open" then
  redstone.setBundledOutput("bottom",1)
    sleep(1)
    redstone.setBundledOutput("bottom",0)
    sleep(1)   
end

The program works fine but I want to have two 4x4 monitors on either side of the door that will both open/close it. I could try to wire the second one with the door, but I don't have that much space. This made me want to use rednet to send what happens on the second computer to the main computer, and the main computer act accordingly. This is what I have the on the second computer:

print("	 Options:	    ")
print("			    ")
print("	   Open		    ")
print("			    ")
print("	   Close		   ") 
term.setCursorPos(1,7)
input = read()
if input == "Close" then
  rednet.send(50,"Close")   
elseif input == "Open" then
  rednet.send(50,"Open")	
end

(50 is the computer ID of the main computer)
I would also like the be able to use touchscreen for the two monitors instead of typing things into the computers. I haven't done anything with touchscreen and if someone could provide some info on it that would be great!
All help is appreciated!
Thanks! :D/>