Telstra Endeavour is currently 80Gbps with capacity to 1.28Tbps (http://en.wikipedia.org/wiki/Telstra_Endeavour)
AJC is currently 240Gbps with capacity to 1000Gbps (http://en.wikipedia.org/wiki/Australia%E2%80%93Japan_Cable), and probably tons from Japan to the US.
PPC-1 can deliver up to 3Tbps (http://en.wikipedia.org/wiki/Pipe_Pacific_Cable)
SXC has 800Gbps * 2 lit, with capacity up to 6Tbps * 2 (http://en.wikipedia.org/wiki/Southern_Cross_Cable)
There's also SEA-ME-WE and probably other smaller ones, but they are the main links out of Australia.