jMonkeyEngine

I may well have been the last person in the world to discover this little gem, but discover it I have. It's a 3D Engine that sits on top of LWJGL or JOGL to make a lot of OpenGL (especially the more complex bits, like lighting) much easier. I'm currently changing Passenger to use it. That should make it look a lot more realistic, and I should hopefully be able to add more interesting scenery, like neon lights.