Ditto - there was a time when your major was important, but no more. I think a General Studies major looks a little unfocused unless you want to pursue something that you have a passion for that isn't a traditional offering. If you can do your pre-med courses while you're an undergrad, great - if not, there's no need for a post-bacc once you have a current baccalaureate degree. Just get the required lower-division stuff and a couple of courses in upper-division life science is very helpful, but that's all you need. I had a bachelors' in business and an MS in accounting. Business degrees were med school poison at one time - but my admissions committee made it very clear that they thought my background was a very useful addition to the class.
Do something you want to do, and worry about med school later. You'll be far more interesting in your interviews.