I agree with disco, People ask same questions about same subject. You have to understand people get tired of repeating themselves(even more so re-typing). Since your new to growing I recomment the book easy "MJ" gardening by ed rosenthal, its like $15.00 us money, the time you save ALONE is worth triple that. I bought mine at Barnes and noble along with numerous other books, borders also has books on the subject.
It will tell you all about fertilizers, ph balancing, hydro growing, light and space requirements, and even sugggestions on how to build it. of course if you don't want to spend the money on book, with the right keywords into a search you can find good information, then bookmark them. This is what I did, it took lot of my spare time but got straight answers to questions that people on here had no idea about.
answer to your questions is you can grow faster if you grow inside cause you control the environment, your actually tricking the plant about how much light is being given. if you grow outdoors you are pretty much at mother natures mercy.(unless you want to physically move all plants to a shade for part of the time.(I wouldn't considering the activity required at this spot)
and yes flowers of males look like "porn-brokers balls" hanging from the stem of the plant. Just one male can destroy a garden(if your growing a commercial weed won't matter much,but even so can help)
hope this helps
Kraze..