You're right. I jumped the gun. I thought the 'horns' were the 'hairs' people talk about. It's kind of hard to find clear pictures of how to sex plants... but I did a little more research and found some.
Thanks, Killjoy, for bringing me back to reality.
Anyway, hopefully they heard me celebrating and will feel more inclined to be females.
On an unrelated note, the plants seem to be having a few wilted leaves in the 'mornings'. The last few days(since I switched them to a 12/12 and the new light, and watering twice a day), when I check on them when their light first comes on, each plant has had 1 or 2 wilted leaves. I haven't thought much of it because it's just the small bottom leaves that don't get much light anyway, and I've just been clipping them off. I assumed it was because they weren't getting any light to them, but then I realized the wilting is happening during their dark cycle. I'm thinking maybe it's over-watering? but I'm not sure. If it's like that again when the light comes on tonight I'll post pictures and start another thread to figure it out, and I'm not sure if it's related or not, but some of the lower nodes look really swollen... like nothing I've seen in pics before. I'll post pics of that too. Hopefully I'm just overreacting and it's nothing.
They're still growing by leaps and bounds every day. I'm going to have to figure something out because I can't move the light up much higher without moving the ballast into the closet.