My DS will only be 17 months when this bub is born next month, but a few months ago I bought a Kolcraft Contours Options Tandem pram from the States - bought it from Walmart through an Australian consignment company, all up including shipping to Queensland it cost less than $500 and is better than most I have seen lately on the market. It has HEAPS of room underneath and 6 or 7 different seating combinations. It's designed so you can even take one seat out and it becomes a single-seater with a massive trolley-like space. Obviously my DS is a bit younger than your DD (mind you, he's already 13 kilos, so I understand the weight-part of the concern with getting a pram!), but I figured I really don't need the stress of chasing a toddler while pushing a newborn, and I won't be physically able to do much baby wearing, unfortunately.

I will add that I LOVE LOVE LOVE the pram and can't wait for bub to come out so I can use it!! That being said, I can wait for the night feeds.....