We aren't on the three year plan for the NBN so I decided to go ahead and upgrade our cable internet to Bigpond Extreme.
Here is how it was before according to speedtest:
And here's how it is now:
So, oddly, ping time is slightly worse from 6ms to 9ms, but download speed is noticeably better going from 26Mbps to 80Mbsp. The experience of loading a web page is very nice indeed.
We no longer have a land line so we pay $110 per month and get 200GB of data. Incidentally, we've just installed a Skype phone - one that doesn't need a computer - and it seems to work very well.