PaulBrislen: Thanks, Mike. The website doesn't have much detail on this or some of the other bits (types of handsets etc).

Also, can I sign up for less than two years? I'd do 12 months at a push but two years is a long time in telco land.

From the Vodafone site

Bring your own smartphone
12 month term. If you bring your own smartphone you save $20 on Red Essentials, $30 on Red and $40 on Red Super

So that would make Red essentials $79 for 12 months?

That is correct... BYO phone though.