Hardwood floor buffing : Random orbital, or circular?

[kaitlin]

I need to wax my hardwood floors. I'm torn between buying an inexpensive automotive buffer and renting a floor buffer. I have to do our entire house a little bit at a time so I'm leaning toward not renting since the cost could add up pretty quickly. What I need to know is whether the random orbital motion of a car buffer is okay for floors? Or is it important to use a floor buffer that has a circular motion. Thanks in advance to anyone with suggetions!