Stress
Prepare to throw yourself into the planning process. Side effects may include stressing over publicity deadlines, raging (inwardly) at flaky sellers, and getting a neck cramp from cross-country flights to view an auction item. Excitement will be at its peak on the day of the big event, so expect a high-octane day from start to finish. Bidders get very invested in sales, and there may be some anger or even accusations of favoritism if things don't go their way. There may also be confusion about the payment process, unless you've got a clear plan and folks to help you out. Organization, a strict code of ethics, and an iron-clad contract will take you far.