We have just booked to go to Orlando for 4 weeks next September and now i need to work out which tickets would be best to buy. We have already decided on the Disney annual pass as we will probably end up going to a disney park most days or nights, but I am really stuck on what to do about the other parks. We want to be able to go to all of the other parks including Busch gardens if possible but don't really want to be restricted as to when. I'm not really bothered if we have to go for a 21 day ticket for these parks but don't really want to be restricted any more than that. What are the best/cheapest options available?