BTW.. Id be interested to see how big prints go on that baby. With mine, small prints were perfect, but when I started doing bigger ones, after about 3 hrs, the steppers began to skip so I had to increase the amps and therefore noise (although still heaps better than the out-of-the-box cube). I also ended up replacing the extruder stepper all together with a stronger one as no matter how much amps I fed the tiny one it came with, it would get too hot after an hour or so (I am using a bowden extruder though). Having seen the Microtronics hardware though, I notice from the chips they've got the newer drivers on board, delivering more amps to the steppers than the 4988's im using could deliver.
dan