The random number generators are easy. Here is my 2X3-bit registers which simulates 2d6 (its actually 2d8 because I cannot figure out how keep from making a Zero with a 3 bit register and cannot get to 6 with just a 2 bit register... I guess I could put a logic circuit down which, when it produces a zero result on the generator, it produces a 1 on the lamps, and then a 2 bit register would work. But I digress)
The random number generators are themselves quite easy to produce. It starts off with a hopper going into a dropper, with a comparator on subtraction mode coming off the hopper and in the dropper is 1 "64 stackable item" (like cobble)and 1 "16 stackable item" (like a shovel).
In this picture is the 1-0 number generator, the 1 bit register.
And here is all that is loaded up in the dropper.
A high signal into the dropper will cause the dropper to randomly select either the 64stackable or 16stackable item. The 64Stackable item will only produce a power level of 1, while the 16stackable one will produce a power level of 3. The power level of 1 is not able to power the entire redtone beyond the comparator, and so the signal never makes it to the redstone lamps, where as power level 3 is able to make it to light up the redstone lamps.
I fire all 6 registers at once using a wooden pressure plate, and the result is 6 random selections of 1 or 0 as output (based on which item goes into the hopper) and then just count in a modified binary (instead of a 1, 2 and 4 result, I change the 4 to 3 and get 0, 1, 2, 3, 1-2(3), 1-3(4), 2-3(5), or 1-2-3(6) with zeroes being possible in the third place). With 2 3-bit registers, I can simulate dice rolls, and if I were to go back and redo the circuitry, I could accurately simulate 2d6. I suppose with more sophisticated wiring, I could simulate higher dice, but I suppose I would definitely need some way to shunt the zeros. Its actually quite simple and resolves the need for random number generators.
I have also included a couple of shots of my main city, built back in Beta, with very little redstone. I have an amphitheater, a version of the Parthenon, a version of Herod's temple, a vertical prison, beautiful architecture, a secret society HQ, a 18 hole bow and arrow golf course, housing for dozens of families, and so forth...
and from the other side
The golf course is to the right of the picture.