If you take a taxi from the airport, don't let them charge you over 15 euros. I made that mistake my first day and believe me it DOES NOT cost that much for such a short drive to town. Bargain if you're good at it, you will win or find a better deal with another driver. But to be honest, I recommend taking a bus. It is one euro and takes you to the main center where everything is a fairly short walk away. To find the most up to date schedule, Google Alibus for the route map and times. They usually run every 20 minutes from the airport. Hope this helps! You will LOVE Catania and Rossella.