This is a very important topic for my consideration of personal training, I realize that alot goes into how much you can make. This is the job I plan to have while in college therefore I need to have the ability to pay for my rent at the very least, main point of this is as a first time personal trainer with a nationaly accredited certification would it be reasonable to expect to make $1000 a month working no more than 30 hours a week?
Everyone else has given you some great information regarding your question and there is really not much left for me to add. The only other thing you could also try is group training not so much for the extra money but more for you to get exposed to this type of training style. In the long run it will be very beneficial to your career as trainer and/or instructor. Good luck to you!