I did my research on the uni's at the end of last year and after weighing everything up (cost and the relevance of a degree included) I am doing a one year diploma course through Avondale College School of Aviation.
The course has two threads, both take you to CPL practical and IREX, but you can choose to do either an instructor rating or ATPL theory. Fleet consists of 2x Cessna 152's 2x Piper Warriors 2x Piper Arrows 1x Beechcraft Duchess and others at times.
Class is only small, I think we have 15 people doing IREX and Reg Litster (theory instructor) is regarded as one of the best in the state.
Call Garry Fraser (CFI) on (02) 49771475 and talk to him he's a top guy, or email me.
Happy searching!