Charlie is in a maxi rider now, and I got it from Baby on a Budget. Charlie loves it, I love the cup holders and the fact that it anchors like convertible car seat and not like a booster, and he will be able to stay in it for a long time.

I don't know if you have one where you are MummaB, but there's a shop (Baby Bunting I think?) at Mandurah that usually has a great range of baby stuff.