Well, I recognize some of those PvE names. First off, all five are sold by vendors on the fleet, IIRC.
Tionese is some kind of alien species, though I can't remember which. The Columi are the super-intelligent, super-ancient Coneheads, and we all know who the Rakata are. What are Black Hole and Dreadguard?
And let me get this straight: the best PvE gear in the game is Dreadguard?