Long story short. I've been looking for a car seat for my little monster.
From my research I've found that all the Infa Secure 0-8 seats are all the same. The only difference is the cover material.
This deal includes free installation by a third party (sponsored by Infa Secure):
http://www.toysrus.com.au/i7508690
It's not as cheap as the previous BigW deal ($135) (it's currently $338 @ BigW & $297 on Thursday):
https://www.ozbargain.com.au/node/143422
There's also a current deal on Deals Direct ($199 + delivery):
http://www.dealsdirect.com.au/infasecure-0-8-paramount-conve…
But you need to wait for delivery and it doesn't include installation.
Also have a read on which seats gets good a CREP review before purchasing www.childcarseats.com.au , I also should add that Babies R Us wanted $196 delivery for me in Tas only the other week so I bought a InfaSecure Comfi Cruiser Convertible 6mths-8yrs Car Seat from deals direct for $164 delivered (now been discontinued) which gets a good review from CREP.