The info about the expenses is explained on the registration web site:
Here is my estimate:
FLL Team Registration (Required): Can. $235
FLL 2007 Field Set Up Kit: Can. $78
FLL Robot Set (NXT): Can. $435
I am not happy about the increased costs, but there seems little we can do about it. It is relatively inexpensive when you compare it to other robotics competitions, but that does not make it any easier for public schools where money is not always available. I fear the smaller and more rural schools will have great difficulty coming up with the money for this.