DO NOT get a Childcare twin rover stroller. It is around $200 from Big W but it is flimsy as and will start to fall apart within 6 months. Have a look at the display models of what you are thinking of and shake it side to side and see how much sway it has, that will tell you if it will stay together.

You could get a toddler seat for your fave single pram that clips onto the side. Babies Galore have them. I can't remember what they are called but both girls would be much happier with that and it will fold down easily for you. I think that option is around $130. I am getting one for Em because I think by the time this bub is born she will want to be walking most of the time.