Yeah, an extra $40 for another gig isnt really viable. The $80 plan is only 1 gig so less suitable. This would be replacing my 2degrees costs for a data connection when I am out as well as the mobile phones own usage so more is better.
I would like 3 with a doubling option like those well hidden on their site addons. CBF texting and phonecalls just annoy me, usually the only ones I make volanterraly are to businesses and most have 0800 numbers ;)
If I could take the cheapest plan, add on one of the data addons and have the subsidy based on that, it would be quite good.