Multiple Computers

Hello All;
Welcome, I have a question which will be easy for you all but hard for me because I am a newbie. so please don't beat me up to much. I have two computers and I am getting ready to run FSX delux on both I would like to know how do I get them to run at the same time so I can multiply my simming experience. I have two projectors one toshiba and a old barco. I plan on maximizing my experience.
I am getting ready to build a joyrider to use as my simpit but I want to network the computers to work at the same time.
PLEASE ADVISE/PLEASE HELP PLEASE.:roll: