My advice, if you can afford it, buy lots more ventilation than you think you will need!

When I did my setup, I wanted "extra" ventilation, so I calculated what I thought was 2x more than I needed.
:S2:

Lets just say I wish I had more...

If your profile is correct, you're a southern grower like me. Heat is going to be your biggest challenge, if you try to grow inside in the summer.