I just completed my arduino powered smoker controller. I feed all of the data to a SQL database and then I monitor it remotely using a web browser on my computer or phone. Eventually I will probably add a wireless router so I don't have to stretch an ethernet cord across the yard, but I am happy enough for now. Below is a picture of the web page which allows me to set a smoker temperature to control to and a setpoint for the meat so I don't forget what I am going for. I will take some pictures of the hardware when I get a chance.