If on the other hand you think, “No problem,” you have a problem: hubris. Unless you are very experienced and somewhat lucky, something will come up that makes the situation much less than pleasant.
The two basic rules of the Universe that govern conference planning, etc. are
a. Murphy’s Law – If something can go wrong, it will; and
b. The Lost Utopia Rule -- you can’t satisfy everyone, ever.
But you can still get a pretty good conference going, despite these axioms.
To examine these issues further, see HOW TO RUN A CONFERENCE: Headache Relief for Planners