I'd like to hear your thoughts about Australian prepaid SIM* cards. I'll be there for just short of two weeks and aside from call+sms (Oz only; international calls/sms not an issue), I'd like to have internet access as well (for looking things up, email and instant messaging).
Of course, the bottom line is value for money. I'm thinking of Virgin, Optus (just what exactly is the difference? it's basically the same network) or 3 but I'd like to know if you have first hand experience with them; i.e. congestion, traffic, coverage of 3G signal, reliability, etc. Of course, their prospective websites say these but we all know we have to take such things with a pinch of salt.
Thanks
*USIM if you want to get technical, but you know what I mean
