alexandros,
One question are you looking at moving to and working in Australia or returning to Italy and working there?
If your intention is to return to Italy and Fly there you need a JAA licence. A licence issued by CASA (Australian Licence) is not recognised in Italy.
The Western Australian Aviation College is approved by the UK CAA to provide training for a JAA "Frozen" ATPL.
See the website
http://www.waaviationcollege.com.au/ and look at the JAA courses.
And Yes I do work for WAAC.