min amount to start smsf

Just a simple question...

If I was to go with esuper, what would you consider to be the smallest amount that would make the time, effort, cost worth while?

The reason I ask is that my wife and myself have our own individual employer based funds. But,we have a few small amounts in other accounts.

We would keep our employer based funds....and set up a SMSF to consolidate all the small amounts.

Our employer based funds are defined benefit schemes, hence we can not consolidate any other amounts into those schemes.

Thanks in Advance

RedMax