I can't recommend a day care center, so look to the other posts.
When looking for another day care, here's something to consider:
Since you have a one-year old son, I highly recommend you (and all parents of boys) read a book called "Boys Adrift" by Dr. Leonard Sax. Or at least visit his website (google it). Young kids, especially boys, should be allowed to free play as much as possible. That means yes- some structure (like morning greeting, story time, lunch time, outside time, nap time), but we should actually avoid preschools that promote "rigorous academic learning" or do other overly structured things that are not developmentally appropriate.
Dr. Sax has a lot of wisdom (he's both a medical doctor of pediatrics AND a PhD psychologist, and he's been studing brain development of boys and girls. It's an easy read, and I got my copy from the St Paul Public Library.
I checked out the book because I had no brothers and I'm the only one in my family who has a boy. I had very little experience with little boy thinking (but learning every second!) Boys are different from girls and so I decided to learn how and why.