Hey,
I was wondering if people could give me some general information on the more well-known clubs at UMich. Right now I'm mainly looking for medical/volunteering/other clubs that will help open up different opportunities for me. As of right now I'm looking into the Pre Med Club, MECO, Circle K, and of course the Squirrel Club
Only one I've heard of of the one's you've posted is Circle K. I would look into Relay for Life too (Cancer research volunteer club), which seems to be right up your alley.
It's all about festifall. On a weekend early in the year, god knows how many clubs and organizations, i think a little over a thousand, all set up booths and stands across the diag to recruit and describe their groups to everyone.
Researching them before can be cool, but Festifall is the freshmen goldmine to get involved. You'll find tons of stuff that sounds cool and get hundreds of fliers for mass meetings to attend where they will give an overview of the club.