I see you got responses just below. One directly answered your question of where to get mags. The others gave you an option of getting mags without buying them. Seems like pretty good responses.
If you mean your post where you informed us of your first shoot, what kind of response were you looking for? How's this: Great! Keep on shooting and it only gets better.
Forums work when people share their knowledge and partake in discussions of interest to them. When you have a question, it almost always gets answered here. You will in many cases get more than one answer that will require you to make a decision. The more information available, the better the decision. If you have something to share, you should do it because you want to and maybe because you were helped before and want to give something back, not in expectation of getting responses.
Dang, if I'm not careful, I may fall off this soapbox.