Building a website and creating a course: Just saw Adam's video on creating a course. Not sure if I need to create a new site for my course or can I just build it off my site I have now? Really don't want to have two sites right now.
You certainly can. That is how I do it and have no regrets.
The thing you need to consider is if you want your course experience to be different then what your site currently is. Also if you are using a theme that has styling integration with the Learning Management System you intent on using.