I was wondering if I could throw my hat into the ring. I'm not as read up on 40k lit as I was when I played my Tau group back in the day, but I do have access to the Rogue Trader books and I wouldn't mind learning the system. I'll probably have a better idea of what I'll play after I read up a bit more, but from what I did read, I am leaning towards Arch-Militant for simplicity sake.