Great replies!
I'm ostensibly just getting started, though I have been reading and pondering for a year and some. I definitely have to say that reading embryonic breathing has helped my meditation immensely, its absolutely a sipper to read and re-read. (then after you've pondered and practiced, practiced and pondered, read some more...as Dr Yang has said, there's tons of stuff in the ancient documents and sometimes by going back over it, some new facet of training will pop out at you simply because you didnt understand the prerequisites fully before. I like the ancient docs.)
I know there is much I have not accomplished, yet I dont really feel that I have much in the way of questions as of right now - at least not anything that cant be answered by going back to the basics; sticking with the fundamentals of training. Glad I found these forums, there's always the chance to come across more info that I would not find otherwise...
Of course, I did sort of pick up books in an ass-backward manner...I came across The Secret of Youth a couple years ago in a bookstore and bought it mostly out of curiosity - I was more into studying martial arts (did a little WC) but was beginning to see the necessity of internal training. After reading most of that (I have since came back to it twice,) I went back and got the Root book, qigong for Back pain, and Massage. Then went searching for exercises (bought 8 pieces of Brocade and qigong for martial arts.)
Recently I also came across a really good book by Bruce Frantzis called 'Opening the Energy Gates of your Body' which has some great posture work, some good explanations of sinking qi and dissolving qi, and the taoist swing exercises are absolutely awesome. Though I have never had trouble understanding Dr Yang, Frantzis' writing is an easier start on the subject for an american, imho. He also provides clearer cautions regarding advanced practices where beginners are concerned.
After all of that I bought Embryonic Breathing and Small Circulation; I'm almost done reading EB and have read roughly 1/3rd of SC. Big difference between just doing qigong exercises and doing qigong exercises with the proper emphasis on the breath, and meditation has 'rounded out' what the exercises provide!
(I also bought Mantak Chia's Bone Marrow Nei Kung....but after skimming through it, I put it right back on my bookshelf where it belongs at this point in my training. I didnt even want to tempt myself with the techniques in there...almost a parallell level as the training in The Secret of Youth. I know it will be perhaps years before I am ready for that training...as a beginner with no master right now, I'm just taking it slow and....taiqiman, love the saying - take your time and savor still meditation.)