Oh me likey! Lots!!!!!
1. You may want too check your velocity speed, too high and the motor will buzz and whine (due too extra weight of the motor)
2. ME. switch are good enough for the Taig, Optical ones are easy too make, more expensive but not needed for the taig (But cool)
3. It may be wise too see the status on all three.
4. I don't use mach 3, I use EMC2, make sure that you have it set too continuous instead of increments of .1 , .01, .5 etc....In emc2 you can do that.
Cool machine, make cool enclosure and use your c11 boarcd with coolant and everything! Oh sorry for the rant lol