christmas decorations come down the first week of january but they start going up mid november. if i were you i would look at the first 2 weeks of december as there's all the holiday happenings, holiday decorations so savings on your venue decor too and the first 2 weeks in december is value season on rates so cheaper for you & your guests accomodations plus small crowds.
coloradogrl - mvmcp is mickeys very merry christmas party at magic kingdom in december & mnsshp is mickeys not so scary halloween party in october at the magic kingdom, both are special holiday events with seperate tickets. theres also the candlelight processional at epcot in december which is a special christmas event too.