You might want to get a one-day pass for Sea World and a 2-day for Universal. If the 2nd day free promo is running at Sea World, I would use it. Adult tickets for Universal are around $90 for 2-day and for Sea World is about $50. Your next choice is the Orlando Flexticket, but I think that costs around $200. You get 14 consecutive days at Sea World, Universal, and Wet and Wild with the Flexticket.