Like the title states, after a decent pair of component speakers, 100+ rms, prefer 6.5" but may consider others. Will need to be shipped to Aus. PM what you've got.
I'm assuming postage will be around the $50-$80 mark, and even then there's a better, cheaper range of gear in the US than over here. Plus the ~parity between the US and AUD doesn't hurt..
I've got a pair of TC Sounds prototype 6.5s. Underhung motor, carbon fiber cone & dust cap. LOUD. I have them on 125wrms right now in a 3 way active setup. Only pair made.