Hi Angela,
You are in for a real treat! We attended Mickey's Not-So-Scary Halloween
Party for the first time in 2009 and absolutely loved it. So much so,
that we are planning to go for a second time this year.
You can find out more about this Special Event
HERE
Unfortunately, dates for the 2011 parties haven't yet been released.
Based on previous years, I would expect the dates to be announced around
the end of April / beginning of May 2011.
In the meantime, I would recommend that you subscribe to receive e-mail updates from
Disney Parks Blog. I'm certain that as soon as the dates are released, they will be posted here. Until then,
HERE
is a link to the post from May 2010 announcing the 2010 party dates.
Whilst this will give you an idea of how many parties are held each week
etc, the actual dates of the 2011 parties will be different.
Wishing you a spooktacular trip!