If you're coming to Orlando for a business purpose and have an extra day, Kennedy Space Center is very cool and about a 45 minute drive from MCO. If you're not into parks and are here when the weather is good, the water parks are lots of fun, even for adults. You don't say when you'll be here, but the Magic games are a blast and the Broadway series is bringing several good shows in between now and April. Lots of awesome golf if you're into that and the weather's great for it year round. If you're into baseball and are here during spring training, the Braves play at Wide World of Sports, which is an awesome venue on Disney property.