I was told when my first was one week old that I really should have put him on the lists when I was still pg--and I'm in Canada, so I didn't need a spot til DS was 1 year old! I put him on at 1 week, and did get into the centre I really wanted, but I think that's partly because they have a "flexible" waiting list--if you show interest, call to check up on where you are, stay in touch, schedule a visit, know other kids in the centre, all those things, then you move up the list. With this one, I probably will go on the list before he/she is born, but I also think I've got a better chance of getting in, because siblings get priority--it holds with the whole family philosophy at the daycare.
Good luck getting into yours. It sounds lovely! I'd love to have a workplace daycare.