This is a fun topic, Brandy!
I think my favorite class was microbiology. Not so much the lecture portion, but most definately the labs! I can easily see myself tucked away in some laboratory someplace, with nothing but my scope and some microbes.
Another of my favorite classes was parasitology. Once again, labs and microscopes. However, we had to prepare fecal specimens, and that was NOT very fun. (I have no idea where the specimens came from either) The fact that there were evidence of parasites in the specimens made me not want to ask!!
PS, The discovery health channel is awesome, isn't it? I love watching the Operation, but it makes my kids sick. They don't understand how their mother can watch brain surgery while eating speghetti! LOL! Another great program is on the Discoery channel or TLC, I think, called "The New Detectives: Case studies in Forensic Science." Great show, you should check it out if you get a chance!