and the wiring is on the arduino web site
this is where I am starting from not sure if this is what you mean
Haven't built either of my cubes yet, but for the 43, the MAX7219 is the obvious solution.For the 83 it's not so obvious - a lot of wires if you use the MAX7219s but they do a great job. Wiring would be simpler using the shift registers - obviously you have to use TPIC6B595s, nine of them with the "layer" register driving eight PNP transistors. Less wires in the cube proper, but an extra shift register, 8 extra transistors and 64 more resistors.Not easy either way!