Originally Posted by
DownUnderFlyer
I don't know a good guide in Sydney (other than us residents) but you really don't need a guide. Sydney is easy to experience for any outsider and doing your own journey and maybe a couple of guided tours will be a great way to get to know the city.
I'd second this.
wripro is there something specific you are looking to do? As your only in town for two days most of the touristy things can be done either on foot around the CBD or relatively easily with public transport. I'd take the Manly ferry any day over a car with driver driving me to Manly.