I'm unable to play this weekend but i highly reccomend the courts at KGV at the rocks, it is close to kings cross, get off at circular quay station and there are 2 courts there that generally always have indoor half court games going on. The address is 3003 cumberland street the rocks, it is opposite an old pub that i cant remember the name of. As for outdoor courts close to the city, i go to the ones on harris street in pyrmont, there are 2 outdoor courts between john street and miller street on harris street (dont know the exact address but they are near the end of harris street, near the harnour and you need to enter through the stairs at the side). There are also 2 outdoor courts and an indoor court off harris street closer to central station, ultimo. it is directly opposite the ian thorpe aquatic centre (which everyone knows), behind a convenience store, once again i cant find the exact address because i dont know what the place is called. I think it costs around $4 to use this place.
Yes there are sydney people who post on this site but only because adelaide fans are apparently the most knowledgeable about basketball cos their local team gets more fans than the best team in sydney which no longer exists despite being in 4 of the last 6 grand finals and winning 3 of them.