It sounds a little funny, but we're experts at drilling holes. We have powerful hydraulic paper drilling machines that feature many different sizes of paper drills and enable us to position the hole just about anywhere on the sheet of paper.
Another feature we offer is two- or three-hole drilling on our digital press, done by the machine in-line while the material is being printed! Just remember to allow 1/2" of extra margin along the side of the sheet of paper for this type of drilling.
Here's an interesting note: Did you know studies have shown that people tend to save printed items longer if they are three-hole drilled? Marketing experts think that subconsciously we tend to feel like we need to put a three-hole drilled sheet into a ring binder or save it for future reference.