While others came up with elaborate ways to pick the winner (e.g. this video), I just copied the list of contestants into Excel 2007, used the RANDBETWEEN function to assign each a number between 1 and 100, and then held down on the F9 key to recalculate a number of times. The winner was the one with the lowest number.
I will attempt to send you an email with the coupon code once I receive it from Oh! Nuts.
Meanwhile, this contest continues on other blogs. It is an interesting idea to do a rolling deadline. Thus, you can still compete at DovBear.
Update: If you are looking for my email, it is on the very bottom of the blog. Look for the word Yahoo.