I went back full time when she was almost six months old.
It sucked, I hated every second for the first week and spent most of my time for the next month trying to find ways I could quit work.
It did get easier, at least she was home with her dad so I didn't have the childcare guilt to contend with as well...
This time I get 12 months paid leave and I dont' know what I'll be doing after that. I'm going to use the time to decide. DH needs to get back into the workforce full time, it concerns us if he is "out" too long (future employablility etc...)