Hey, congratulations! I enjoyed my instrument training more than the private.
One of the regular contributors, RB (not sure of what those initials mean), took the time to create an audio clip of IFR clearances specifically for students like yourself to use for clearance copying and readback practice.
Check out the thread and get the clip here:
http://www.liveatc.net/forums/index.php/topic,4278.0.htmlNote that there may be some subtle differences between the phraseology here and Australia, as this clip was made from a US-based clearance feed.
Also, I believe that listening to LiveATC's live feeds of approach facilities or some of the busier center facilities should familiarize yourself with the patterns of communication, especially the approach clearance and the hold clearance, both which tend to be the biggest hurdle behind copying and reading back an IFR clearances for instrument students.
As far as books, I am a bit hesitant to recommend the book that I once used called
Say Again, Please, by Bob Gardner, only because I am not sure if the differences between US and ICAO phraseology are large enough to cause you confusion. Perhaps someone with more international aviation experience can comment.