We are new to the whole Disney scene and are completely OVERWHELMED by everything. We are looking to just do a long weekend in October - the 14th through the 17th. Now I see that there is a whole Halloween thing going on then. It mentions needing separate tickets. Is this something different than just purchasing a park ticket? Can you just go to the park and not take advantage of whatever is going on? Since I see that tickets went on sale in May, can we even get park tickets at that time? Help!