Not much of an artist, so no diagram from me, but i can write it out!
From the code you can see that I am using digital pins 9-12. The driver that I am using is the SN74141, you can find that datasheet pretty easily. The power supply is a DC DC 12v to 180v unit that I got from techkits, there are others out there that are adjustable voltage as well, just do a search for nixie power supply.
So the basic wiring is
4 digital pins to pins A B C D of the 74141.
VCC is 5v+, i'm powering that off of the Arduino
GND is connected to the common on the 180vdc power supply.
The remaining pins go to the corresponding leads on the nixie tube.
The nixie tubes are common anode, so i take the 180vdc from the power supply to the anode of the tube.
That's it!
I'm sure there is an easier way to code the functions of the 74141 using an array, but I'm by no means a coder.