Babywearing for Attachment?

I wore my DD all the time as an infant, and plan to do so with any foster babies we may get. I started out with the Baby Bjorn, but it KILLED my back. I researched and ended up getting an Ergo, and absolutely adore it. I also just recently bought a Moby carrier on sale, so I am excited to try it out. I agree with a PP, Dr. Sears is okay, but a lot of his advice is restrictive. But as with all parenting books, I take what is helpful, and leave the rest...which is good since I have a book shelf filled with those books. :D