I too am just delving into Hammer's work. His first book is on its way and his other 3 books are just being transkated into English so I will have them soon as well.
My intuiton has been throwing Hammer's name at my relentlessly so it is time to assimilate his info. I have the feeling that his work offers a profound link between the emotional and physical bodys (holistically speaking). I think his work should dovetail nicely with many energy medicine techniques especially emotional releasing modalities such as NET and EFT.