Good looks aren't everything :) Here is a little information for you. Or more likely for the next person who wants to take up the torch.
Code:
https://github.com/br3ttb
Easy explanation:
http://brettbeauregard.com/blog/category/pid/
This code works, I have used it to cook sous vide, although
my own smoker uses a Watlow PID controller from ebay. I have a brewing project in the works that will probably be Arduino based.