I ran across a Enco mill/drill that has a round column for $400 and was wondering the quality of the round columns I understand that the round columns are not as rigid as the square coulmns but honestlly what kind of milling can a round coulmn do? I ask as I am just a hobbiest but would like to be able to do some reall milling work I work on small engines and what not and need a mill that can do real work such as boring and surfacing blocks and heads. I would like to be able to surface car heads as well. I am looking to get into doing lots of machining work of all aspects not just automotive ie tools, prototype stuff as well as fabricating special parts for my own toys So the big question is whats the real low down on the square vs round coulmn mills is the round coulmn just as good but you cant take as deep of a cut because of the round coulmn will let the head move or what. Please really need to know as I am looking to buy very soon.