[Nathan]

Yeah, the first time I heard "How are you going?" from my Aussie friend in Japan I was a wee bit confused. I just responded "I'm not going anywhere....", much to his amusement.

I think I may have mentioned it earlier, but "How are you doing" does have a few variations in Canada.

In increasing informality:

"How is business/the family?"
"How are you?"
"How are things?"
"How goes?"

And in cases of long absence:
"How have things been for you lately?"
"What's been keeping you busy?"