I echo others with regard to health cover. If you decide to go private, it's bloody expensive. Your monthly premiums are quite high, plus another 4-6k for an OB, another 6-700 on scans and pre-natal testing, up to 2k in hospital fees (epidural etc). It's insane. I went private with DS, and while I loved my OB and the "security" of private with my first birth, I'd go public with any subsequent children.
I'm pregnant with my second, and while I won't be in Australia when I deliver, I'm doing shared GP care. My total out of pocked with be 2 scans and NIPT.
Baby "stuff" is another story. I spent a ridiculous amount on DS, and it while lovely stuff, wouldn't do it again. He has a $1300 cot, baby 2 is getting the ikea one for $200. Same with the dresser.
I would invest in a decent carrier (~200) and a pram you love. Don't bother buying a bassinet, see if you can hire one since they are in them for so little time. I'd also skip the capsule, and invest in a car seat that will go from newborn to 4.
eBay and Gumtree are great places to pick up bargains.