All, just FYI... I found out that Cubify from 3D systems had a demo booth at my local mall in Charlotte so I went down there to check it out. Not a bad system for the user friendly crowd, but... any part that had a flat bottom you could visually see warpage. It was enough to me that any part would be too far out of tolerance to be practical. I know that the Cubify uses ABS with a heated platform and Ultimaker does not.
Does PLA give you warped parts on the Ultimaker or is it more dimensionally stable?