Bec, have you seen the research on rear facing vs forward facing? it is MUCH safer to travel rearward facing which is why it is recommended that you don't turn your child around until they reach the weight limit (ie 12kgs for most seats in Aus). In Sweden they make larger rear facing seats that kids stay in until age 4 and they have far fewer injuries. There is a post on here somewhere, there is a video and all to show the difference in an accident.

This is why Tom is still rear-facing at 14 months and will be until 12 kgs. He doesn't mind as he can see Jack and they make faces at each other. It is harder with child no 1 though I think as they get bored. But you can try toys and things to keep them occupied and also buy mirrors for them to see as well. Personally I would wait as long as before before turning around.