I'm confused that you're taking clin path and anatomy, but haven't finished your pre-reqs? How is that possible? Aren't they pre-reqs themselves for those upper-level bio classes?
As regards the time in class -- I think that's true across a lot of schools. Maybe not NO credit hours, but six hour labs are regularly only 2 credits, if not less ... or four hours of lecture and four of lab are only three credit hours. Not to be harsh, but all of us dealt with these issues, not having time, studying a lot, and still were found to be well-rounded. And if you are applying in 10/11 (in two years) couldn't you join clubs NOW and have more than one year of membership?
Edit: I really didn't mean to sound crabby -- lots of histo fries my brain.