In your bread box incubator, you said you installed a cpu fan. Can you describe 1. where you got it & if there is a decent substitute that i could get & 2. where did you install it in the box?? I bought my bread box at the goodwill yesterday almost identical to yours for $9. i was so excited. I am slowly collecting things. This is so exciting. My 2 older girls can't wait to do this. And my husband actually chastised me for spending the money on the bread box when he said he could have built me a box. But he doesnt understand I dont want him to build me a box. I want to do this myself!! Hear me Roar!!! (totally joking!! but i'm not incompetent either!!) Thanks in advance for your help.