Spindle number two arrived the other day - a 7500rpm spindle with a 40 taper from a Haas VF3. Below are some pics along with pics of three of the servos I'm planning to use for this - Fanuc 10S models with incremental encoders. The two big ones have brakes on them. The other shorter one does not. The ones with brakes will be for the z axes. I have another 10S with a brake in a box somewhere, so that will cover everything. However I might decide to go with a 5S for the y axis on the table as that would be the smallest weight to move and could benefit from the smaller motor size. I have a few of those sitting around as well.
CNC mill build thread: http://www.cnczone.com/forums/vertical_mill_lathe_project_log/110305-gantry_mill.html