DH and I have not always been on the same page, either, and we still disagree about certain things. But on the big things, we agree. And we are able to talk about our areas of disagreement and agree to disagree on some things

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Anyway, DH is turned off by a lot of the AP literature, while I soak it up like a sponge. I love Alfie Kohn, DH thinks he's a pseudoscientist (DH is a physicist and can be a bit of a snob about social scientists and psychologists, esp educational psychologists). But getting him to read a bit of Unconditional Parenting helped him understand my perspective, and he may have soaked up some of the ideas through osmosis or something. I think a lot of the UP concepts were more natural to him than to me.
Anyway, books that we both like are the Dr Sears baby book and T. Brazelton's Touchpoints. I think that Touchpoints has some stuff in it that I don't agree with 100% (he's not really an AP author), but the overall idea is very good- I think he is right on with developmental milestones and what is appropriate at each age. I just got the Attachment Connection by Ruth Newton from the library, and it seems really good though I've only read the first chapter. It came highly recommended.
I'm also reading Playful Parenting, which I find extremely helpful. It has helped change my attitude about play and when to be serious, and I think it makes parenting more fun! I'm not going to bother giving it to DH to read, because he'll say it's common sense. In a way it is for him, he is a more playful person.
anyway, go get a bunch of books from the library and read whatever you can- sometimes just skimming a book and reading a couple of key chapters can be helpful! We own Brazelton and Sears and I just get everything else from the library.