Hello, This will be my first time growing (anything really) I have some friends willing to buy what I need to get my indoor grow (48x36x72) up and going. I'm looking for useful knowledge about steps in the process, MAJOR NoNo's or product recommendations. I have done my homework on the "process" for the most part. The math behind ventilation and lighting however seems to elude me. Any insight would be much appreciated. Hope to speak with a lot of you soon.