I know we've had some threads in the past about the best personal trainer certifications, but can't remember too much about it. I love what I do for a livng, I'm a financial planer (run my own investment firm), but I've always plotted to get the certification on the side and have a few fitness clients. It would be easy for me to do that and also broaden my own goals.

At one point I focused on being ACE certified (American Council on Exercise), but now hear about so many others. Comments?