What will be for the S.A. captain VS Aussies at Melbourne 1/5 ODI 2009?

Australia. South Africa dont have their best captain and batsman Graeme Smith which will be a HUGE blow as displayed in the T20s. Also, South Africa will be resting their quicks regularly which means an attack thats not full strength. I believe they will fight back as they displayed on numerous occasions in the tests but the aussies are the stronger side in odis unlike in the tests where South Africa were clearly stronger. I predict Australia win 3-2