We have a winner for the TI-Nspire CX calculator! It is "CRheam". Please email me at daveandcori at gmail dot com and give me your full name and address. The calculator will be shipped directly from TI.
To select the winner, I entered the names of everyone who commented on the blog posts into a great piece of free software called "The Hat". It then selected a random name from the whole list. The Hat is very useful for randomizing a list, selecting a single random person, or even selecting pairs of people. It is one app in a group of free apps for teachers from Harmony Hollow.