Went with K'Kree for the drama/tension because our group never really ran into them. Though we did over-play the Chirper/Dyrone connection in CT, I still have a soft spot for the "helpless" Chirpers. Played TNE for a short time and had our fill of Hiver manipulations. I am not paraniod, just really, really cautious.
"I check the secert security monitors we installed in the Hiver's cabin...what do you mean he is just sitting there? Is it asleep, do they sleep? I think he is plotting another surprise. I have our Psionic character try to see if she can pick up any kind of mental signature from that sneaky Hiver."