DSE is selling this 3g nokia 3120 classic with optus prepaid sim for $99. there are 2 packages, one with $10 starter sim and other with $100(provided you recharge $30). 3 is selling the same phone for $169. It can be easily unlocked from unlocking shops(~$20-30) or using some of the sim attachments available @ dealextreme (~$7). After unlocking it can take any sim(yes telstra nextG sim as well).
Many shops don't have this, better call ur nearest store or purchase online ($9.99 postage).
Simple Spec:
- 2 MP Camera
- Bluetooth
- MP3 Player
- FM Radio
- 3G Compatible
DSE link: http://search.dse.com.au/search?w=3120
Phone Spec: http://www.gsmarena.com/nokia_3120_classic-2240.php
dealextreme sim tools: http://www.dealextreme.com/products.dx/category.506~search.s…
usually unlocking is 50-60 in the first 3-6 months, then $30 thereafter. Thats what i've seen with telstra and vodafone phones, ill assume optus is similar.