you know that they double to triple in height during flower right?
i dont know how big your grow room is but it looks like you might overgrow it with plants that big.
if you don't have room for them to get at LEAST twice as tall as they are now i would seriuosly consider topping them or LST'ing.
i'm not 100 percent sure about them doubling during flowering, but I can say that the first week of flower my plants grew 6", and they were only about 12" tall at the time!
and that pic earlier i didn't see any signs of a female, the only thing i saw were stipules which every plant has but really become noticeable as it gets bigger.
females aren't as obvious right away, but it's easy to spot a male, they have seed pods which are pretty big and easy to spot. check out the growfaq and go to the section on sexing.
and just as an FYI on these forums, if you post something and dont' get a response within a day or so usually people will reply to their own thread with "bump", this sends the thread to the top of the forum so that it doesn't get relegated to the third or fourth page that no one looks at!
that way you dont ahve to feel like a whiny bitch askin for answers!
ps your grow looks good, excellent vegetative growth. and it's actually perfectly good to use MH all the way through floewr ( the difference in yield is like ~5% i think using hps which on a small scale grow is pretty insignificant and experience will improve your yields a lot more than that)
however i noticed it looks like you don't have full coverage with that 400 watter, what area do your plants occupy (square footage)?
