There are a number of specials at the moment, plus if your order is over $US40 you will get free shipping if the total weight is under 4 lbs. (if you want more you can split your order to keep under the 4lbs, but each order must be higher than $US40)
Due to customs regs not all products are permitted into Australia, but iHerb's system, flags the ones they have had problems with in the past and wont let your order them, so this reduces these issues. I have checked all products below and these can be shipped.
The ones that caught my attention are. (All in $US)
Natrol, Tonalin CLA, 1200 mg, Increase Muscle Retention Helps Keep Fat Off & Prevents Regain 90 Softgels $6.00 http://www.iherb.com/Natrol-Tonalin-CLA-1200-mg-90-Softgels/…
(this is a today only special reduced from $15.80) Local prices for this start around $39, so it's a savings plus if you act fast.
They also have some products on short date sale, which saves but stocks limited. These can be found here
http://www.iherb.com/Short-Dated-Sale
http://www.iherb.com/Trial-Pricing
Which you can use to pad out your orders weight or value, to gain maximum benefit of your shipment.
First time users can also gain $10 off if order exceeds $40 ($5 off if its less than $40) if you use the referral code http://www.iherb.com/?rcode=QAZ216
For your bargain determining convenience, here are some price references in Oz
http://www.myshopping.com.au/ZM--804626193_Vitamins_Nutritio…
Apologies on those who may have seen the original post with a deal on Vp2 whey protein. After posting I then tried to order this, but only at checkout (vs putting in the cart) did this come up as being prohibited to ship. I have deleted this from the post.