What I've bought so far:
Golden Beetle Books/Spiritual Syllabus by Alan Whitehead: "Touch the Earth Gently" and "A Steiner Homeschool?" I really like these, although they are more inspirational than here's exactly what to do type books. They are kind of ecclectic and cosmic, but I do really like them. He believes (as I do) that Steiner's ideals should be alive and creatively growing/evolving rather than just copying the original curriculum used in that first school in Germany (like so many Waldorf schools and curriculums do). Alan is Christian, I believe, but his writing comes across just very spiritual and esoteric.
Golden Beetle Books for under-7s: There are 4 of these, one for each season. Each contains a simple story and suggestions for activities along with a few songs. These were written by Alan's wife, Susan. I haven't worked much with these yet, but they look very good.
Christopherus Homeschool Resources: "Kindergarten with Your 3-6 Year Old", "Waldorf Curriculum Overview", and "Drawing with your 4-11 year old". These are very practical and insightful guides that tell you exactly how to go about doing Waldorf in the home. The K guide and the curriculum overview are overflowing with lists of books and other resources to use. There is an ever so slight current of Christianity through it though. I also found that the traditional waldorf curriculum which uses the Christian saints, stories from the Old Testament, and Grimm's fairy tales not exactly what I was wanting to focus on. I was a little disappointed with the drawing guide as most of it seemed to focus on first graders and on up, and most of what was said about 4-6 year olds was already covered in the Kindergarten guide. But I'm sure I'll get more use out of that guide as my kids get older.
EDIT: Update on Christopherus stuff. I've been working with the Kindergarten guide more and while it does have a slightly Christian tone throughout it, I've been able to adapt *most* of the content for useage by our pagan family. Just wanted to add that for any non-Christians considering using Christopherus. Even though it isn't a perfect fit for my family, her stuff is so full of ways to make it your own and so full of wisdom and practicality, that I would recommend Christopherus to non-Christians.
I've also purchased lots of supplementary books like Circle Round (a seasonal activity book with songs which I HIGHLY recommend), Toymaking with Children (also highly recommend), Storytelling with Children (haven't read this one yet), and many used fairy tale, folk story, and fingerplay books.
So at this point I'm not sure I NEED the enki resources, but most of the stories that I've purchased were from the Christopherus recommendations, and I'm wondering what other wonderful stories might be found in the Enki stuff that I'd be missing out on. (For example more Native American stuff which my children really seem to show an interest in). I know that I want to do Enki come first grade, just not sure how much I want to spend on Enki stuff for this year. Of course knowing that I want to do Enki for first makes me think, I should just start with it from the beginning now that I know it is what I want. LOL Just thinking out loud here. :-)