Python/ Java/ Arduino GUI

Hello, I'm trying to make a GUI for a ROV that will show the cameras, monitor of the motors, volts, amps, etc. I know a bit of both Java and Python. I am wondering where I would go about to start making a GUI for this. My assumption would be using processing to create the main GUI frame, and incorporate Arduino into it. Any links to any similar projects or information about this would be nice as well as all responses. Thanks, Chris

This Python GUI demo may give you some ideas