I forgot to mention this is my vendor review post but we had an amazing experience with Tropical Breeze Frozen Drink machines. It was warm when we got married and the slushees were a huge hit! You can even get milkshakes or margaritas. Its a fairly new company but they are professional and easy to work with and a good price! I would highly reccomend them!
www.tropicalbreezefrozendrinks.com