Well, if you'd like to do Pharmacy postgrad, you're probably going to need PCOL as a prereq. If you've not done more than 12 cp of the prereqs they won't consider you.
I'm doing pharmacy now and so far it's just revising all the PCOL I've already done, with some new stuff thrown in.
When you add enrol in the subject, after putting in the alpha and digit it will come up with semesters it is available in. If it only lists semester 2, it's only available in semester 2. Nothing you can do about that if it's a core unit.
Anything. Possibly science since there will be a lot of science in Speech Pathology, but to do it postgrad you also need linguistics (which you could take as an elective in a B Sc).
I actually found the skills test to be the easiest part of the course. Don't pay attention to that though, because I've heard people cry in the skills test.
I found it easy because I had completely filled out my lab book perfectly. Just look at it and it's really straightforward.