That's really a personal decision. A nanny is the most expensive, and you could also do an in home daycare or a center. There are church daycares too. The range is so different based on various factors. We have a nanny that comes to our house every day. She's about 2K/month, but the more experienced they are the higher that amount will be. In home/centers would be most likely less.
Parent Connection is $20/year and they have a bunch of resources. GL its such a hard thing!