Just make sure that the capsule you are given has a 5 point saftey harness rather than the velcro harness. The velcro version is now illegal.

If your friend doesnt come through with her promise, I believe you can rent a capsule from the ambluance service? It might be different in NSW though? (Im in Qld)

Having a baby shower is a great idea! Make sure you give your mum / friend a list of things you need (that way she can secretly spread the word to all the guests)

The weather in Sydney sounds very different in September. Dressing in layers might be the best bet. Are you going to find out if the baby is a girl or boy in a few weeks?