Originally Posted by smostyn

Pretty sure there is a shop in Campbelltown.
There is also a very good shop on Paramatta rd at Petersham, bit further for you, but it would be worth it. I buy off them now and then online at RCHobbies

Pretty sure there is a track at Moorebank as well, the drivers there will be able to tell you more. I havent been in Sydney for a few years.