What are the best agencies in Melbourne??

Hi everyone, Can anyone recommend some agencies that are notable in actually doing their job..? I have had my fling with Blackbox Management (mistake) and i do not want a repeat. I am aware that Catherine Poulten have reputable excellence in my area (Melbourne) and have auditioned, but it proved as hard to get into as people say :). SO, my point is, I would be eternally grateful for some advice that will point me in the direction of some other good agencies, that I can try out for… :D thankyou sarah