First of all, high five to all the participants who have kept this thread positive!

So refreshing when discussing this topic!
I agree with everyone who said it's a personal decision and you have to determine what is best for your family.
My first dd was in daycare from about 3 months old, and had a wonderful experience. I'll tell you though, we looked long and hard to find a place we felt comfortable putting her. During some center visits, the teachers would ignore crying babies while talking to us and showing us around, so they were quickly crossed off the list. In the center we chose, someone was always on the carpet interacting with the babies. They didn't even have swings, because the director felt it was too easy to put a baby in one and ignore him.
Some people prefer in-home centers because of the hominess, consistency and sometimes lower caregiver:child ratio. Personally, my dh and I were a little fixated on the neglect/abuse issue, so we preferred the idea of a center, where there is always more than one person in the room, a window in the door and the possibility of the director walking in at any moment, to an in-home center or a nanny. We also preferred our dd to be in a room full of kids her own age, rather than a variety of ages as is usually found in in-home centers, although many feel exactly the opposite. Neither is necessarily better or worse, it's all about your own personal thoughts and preferences.
Yes, I cried the whole way to work that first day I dropped her off. It was very hard to leave her. But you know what? Now, I SAH, my second dd (3.5) recently started preschool, and I cried the first day after dropping her off there, too.
If you have any specific questions, please ask. There are so many things to think about, I can't list them all. It might be helpful to list your (and your dh's) specific concerns, and we can tell you what our experiences have been.
Good luck!