what proportion of the index is made up of the big4 banks, RIO, and BHP
what propertion is made up of the next 4 largest market cap companies.
the top 10 represent a huge proportion of the total index.
So look at the top 10, look to valuations and that will give you an idea where the index can go.
Personally i dont give two hoots, as i have said for a while, i strongly feel this is going to be a stock pickers market, rather than an index market lifting all boats.