Who is using a temperature controller on their UDS? What make and model are you using? Even though controlling the temps on my UDS is pretty easy, I am a gadget nerd and a temp controller sounds really appealing. I am considering one of these two or building my own. http://www.auberins.com/index.php?main_page=product_info&cPath=14_27&products_id=351 I think I can build my own for around $90 but the $150 to get a real one might be the way to go.