Quick update, current as of last weekend but also any time in the last year:
No Transformers figures of any nature at either Quality Comics or ComicZone in the CBD. Quality Comics has a reasonable amount of non-current Transformers IDW stuff (a few of the older trade collections). Couldn't see any at ComicZone.
Zing/EB Games in the Hay St Mall has MPM Prime, but for some stupid price.