Gilchrist as V/C will skipper the side... As he did when he was last out of the team. Elliott replaced him on that occasion as the extra batter
http://uk.cricinfo.com/link_to_datab...05JUL2004.html
However, he had a shocker in that game so, and is not in the squad...I would say guess they will move Martyn up the order, bring Katich up to 5, which will mean space for Clarke to make his Debut
Langer
Hayden
Martyn
Lehmann
Katich
Clarke
Gilchrist- Cpt
Warne
Gillespie
Kasporwicz/Hauritz
McGrath