ACC1100: Intro to financial Accounting
ACC1200: Accounting for managers
Just want to know which of these two units I should choose for one of my First year units
This is the first year that they have split the first-year accounting unit into two (there used to be only one compulsory unit called ACC1000: Principles of accounting and finance), so there is no one who can really give a review of either of them.
Since you did Accounting in VCE, I would say that the content of ACC1100 (Introduction to financial accounting) will probably be more familiar to you (my memory of VCE Accounting is quite faded now, but I remember it being mostly financial accounting and hardly any management accounting).
Also, it looks like Alan Serry is running ACC1100, while John Gerrand is running ACC1200. Based off that alone, I would recommend ACC1100, as I much preferred Alan's lectures to John's (I also had Alan as a tutor for one of my first-year accounting subjects, and his tutorials were very helpful).