Participate in killing all the bosses
After completing Mount Hyjal, visit Nat Pagle in Dustwallow Marsh to start the quest Find Djakar. This requires 375 personal fishing skills - but you will need that to catch anything anyway.
Enter either one of the Coilfang Reservoir dungeons as a hero ((heroic mode)) or Star Wars Galaxies credits. The advantages/disadvantages of each are discussed below - the method is the same for all. You must participate in killing all the bosses: You cannot simply enter after someone else has cleared the dungeons - this is not Karazhan.