It makes me crazy /laugh when I read the first comment on this thread! So many tyre places and so called alignment guys are full of crap. Tyre guys give uneducated opinions based on NOTHING. just personal opinion. The front and rear are FULLY ADJUSTABLE so you can set them up perfectly for "australian"roads.
I have an educated opinion at least (15 years as tech engineer for Bridgestone and an engineering qualification) and we know our cars. Firstly if you can find the specs, use them. SOme vehcicles are a little different due to design (eg 350Z need more toe in because they have toe out issue under braking) or F/R balance - some FWD run more rear neg camber to give rear bite... but as a general rule: Set them up to suit your dirving needs and roads. eg i drive flat freeway but still want a bit of neg camber for cornering - so half to 1 degree of neg camber, put a bit of toe in for movement of bushes, under braking and wear (1mm measured on the right tyre /wheel diameter).
Re tyre pressures, if you are running 45 series or lower put 40 psi because they are easily damaged if they get a little underinflated. esp if they are subject to excessive camber. the lower the aspect ratio - the more pressure for safety (up to 45). I run 38 in my 50 series, I would not go under 34.
Re tyre wear, how long is a bit of string? depends on alignment and driving. I will get at least 45000 out of mine because I do a lot of freeway. You get what you pay for with tyres. Nankangs and wanlis etc just dont have the balance of grip and wear and are really bad at recovery (slalom). I remember testing wanlis on a reps HSV. I nearly lost the rear end by the 3rd cone and had to abort at 70km/h whereas Bridgestones did 80km/h and just kept going where I pointed them - no snap oversteer no wash - just grip.
But if you like power oversteer coming on easily, and dont mind fighting for your life dodging a kangaroo or animal when the tyre wont recover, go for the wanlis!