Looks like your questions have already been answered here. And if they haven't, thats what your CHL class is for. The only thing I would add is that, if you are thinking of qualifying with a semi-auto, it would be a good idea for you to have shot one before class day.
Let me know if you are in DFW area and want to try out a Glock or two... or a Sig, or a Colt, or maybe a Ruger... well, you get the idea.
Again, welcome!
![SeeYa :seeya:](./images/smilies/seeya.gif)