Problem is.. The computer that came with the arcade machine is from like 1999-2000, and the one i'm gonna use is from 2009. So the the connections for the harddrive and graphic card doesnt match the one i have. But i just placed an order on the ArcadeVGA card, so hopefully that will do the trick.
Then the next step would be to configure the joystick and buttons to the new computer, but i would imagine that is much easyer than the monitor part