Yeah dude, when I first got into growing i spent my first two months learning about growing. The hard thing is there is a lot of info out there and sometimes conflicting.
The best thing (IMHO) is to find someone you believe does it right and copy them.
The biggest reason people get busted is not because the electric company was checking out their usage or the cops were tapping your phone, it's because you talked to someone.
Here's your basic list of things to cover. Within these there's a ton to learn:
power - how you're going to wire your area
light - what you're going to use (CFL? HID?) what strength, etc
method - soil or hydro? If you choose hydro you have more choices (DWC, ebb/flow, aeroponics, etc).
enviro - how you are going to keep the room the right temperature and humidity. It must also be light sealed for flower.
stealth - how you're going to keep this stuff hidden.
Hope this helps.
Killbud