The Taig mill is perfect for that use.
I use mine for short production runs (<1000 pcs ) this last project involved drilling thousands of 3/16" holes in 304 SS without a problem.
I mill PCBs on my taig as well and really like the 10K spindle.
Taig makes a CNC ready model that you can just bolt the steppers onto
and build your own driver box.
there are some pictures and more info on my web sitehttp://microtools.ca