Yay, that's awesome! I rembember feeling so proud of myself the first time I ever joined the gym

I agree that classes are a great place to start, especially of you're not really sure what you should be doing. I love body balance! You can't go wrong with that one and always feel so relaxed afterwards, but you will really feel it the next day! Body combat is great too. Its based on kick-boxing (I think) and is a great cardio workout. I also like pump for strength training. I find doing weights pretty boring, but pump makes it so much fun.

Good luck with your journey to fitness, I hope you enjoy it