Please tell me you need that certification for a job and not for your own personal training business. The ACE test is more of a math test than anything configuring BF%, etc-very little to do with being a good, knowledgeable trainer. I think revealing just how worthless these so called certifications are to your clients will gain you more respect in the long run. Same goes for trainers with Exercise Physiology degrees. They can acquire this degree w/o ever setting foot in the gym. How on earth does that make them a good trainer? Most people that are impressed by degrees or certifications don't realize how easy they are to acquire. PT Certifications are kind of like the ad that reads Karate Instructors Wanted: No experience necessary. Any shmo can sit through a seminar and pass a test. Hand them a clipboard and voila'-you're a PT. As ridiculous as it sounds, it's true.
If you want to truly be successful as a personal trainer all you need to do is convince people that you're capable of helping them achieve their fitness goals and that you are worth the $$$ they invest in you to do so. Even PT's that look like shit can do it. I see it all of the time. Of course looking good will speak volumes about your abilities and clients should come rather easily. But there will always be the dumbasses that continue to hire "certified" PT's that are at lower levels of fitness than many of the clients that they train.
Sorry for the thread jack-I just don't want you buying into this certification crap if you don't need to.