I have been wanting to do this for a while. Having seen what others such as Hoss and Don have done I figure it's time to get started.
I've managed to collect most everything I will need to at least get started.
List of what I have:
3 Ball nuts
Metal for mounts
G540 and 4 318oz/in steppers
Dedicated computer running Mach3 (dual boots w/ Linux to try EMC2 later)
Things I still need includesuggestions welcome)
Wire for steppers and sensors
The plan is to get the 3 axis under CNC control, then enclose it. Future plans include setting up the spindle to be controlled by Mach3 as well as coolant.