I got some good advice for using "Black Crusade's" from another GM for character creation / rules replacing the orignal Dark Heresy Corebook (and others) rules. I currently own the aformentioned corebook, and the Ordo Malleus book. I had initially planned to use the RAW (which have some issues), then transfer it to Strands of Fate or Savage Worlds, but then got the above recommendation. I just like the system - it's probably my early childhood exposure to WFRP.
What other books from the DH series you would recommend as being critical, must-buys in terms of communicating flavor or providing huge value adds (e.g., an opponent book)? For example, I'm sure the abitrator book is cool, but I'm not sure that it would go on your critical list.
Thank you in advance for your assistance.