Hi Shani,
I had the chance to attend
Mickey's Very Merry Christmas Party last year, and it was so much fun. Enjoying complimentary cookies while seeing Mickey's Once Upon a Christmastime Parade was a special treat that I will remember for a long time.
Ticket prices may vary on a number of factors, including date of the party you wish to attend and whether you purchase in advance or on the day of the party. Although Disney has not yet released prices for 2013, we can look back at what the prices were in 2012 as a guide. In 2012, prices ranged from about $58.95 to $67.95 for adults ages 10 and up, and from $53.95 to $62.95 for children ages 3 - 9. These prices are pre-tax and may go up a bit this year. Also you should know that Annual Pass Holders, Disney Vacation Club Members and members of the military may also get discounts on certain nights. There is a good information page about this on the unofficial website allears.net. Go to that site and search for "MVMCP" and it should be the first link that comes up.
Cirque du Soleil - La Nouba is positively amazing. It is a spectacle beyond compare and I highly recommend seeing it. There are a variety of levels and pricing for this show. You can buy tickets online or by calling 407-939-7600. There are a variety of ways to get discounts for this show. I recommend going to mousesavers.com and searching for "cirque du soleil" for a really good explanation of the levels of seating, as well as current available discounts.
Have a great time planning your trip, Shani! Please do not hesitate to ask if you have any further questions.