How do I make my own PC grow box?

Hi I'd like to make my own PC grow box for a good price. Does anyone have any plans or advise that could help me out? I've seen a few where they run a power strip inside for the lights and then it had 2 fans on the short side. How do you keep the smell down in something like this? Any help is greatly apreiciated

Ahahahah That was awesome!

that ( start here link is sick....) so i have a 100% homemade pc grow box.. do you even have the old pc tower or a empty pc tower???????