Team 379 purchased a Tormach PCNC 1100 about two years ago. There is definitely a learning curve, but our entire robot was machined in-house this year on our CNC mill. My biggest complaint is the bed size, I don't think you can machine anything larger than 18"x 10", which is decent for FRC.
I also believe you can purchase a lathe attachment that mounts to the bed of the PCNC:
http://www.tormach.com/product_pcnc_lathe.html
Or a rotary/4th Axis attachment as well:
http://www.tormach.com/product_rotaryproducts.html