I have a dilemma, need a bit of advice maybe 
My family (2 adults and 2 kids - 3yrs old and 9 months old) are going to USA next year (departing May 22 2010), we are flying into LAX or SFO, then doing our own thing internally, then flying from NYC back to Adelaide (June 12 2010).
We have enough Qantas Frequent Flyer points for the 2 adults and also the 9 month old (we only need to pay taxes for her). So my dilemma is we need to get our 3 yr old son on the same flights as us on (JFK - LAX - BRIS - ADL) on Qantas.
so do i book the frequent flyer flights for the 2 adults and 9 month old and hold off and wait until Qantas release sale fares to the USA then book my 3 yr old on the same flights as us (only pay 75% of fare as he is a child).
OR..... do i just book the Qantas frequent flyer points from JFK to Adl for all 4 of us, then maybe wait for some one way sale fares say on V Australia to get over to USA, knowing that we aer all confirmed on the Qantas flight from JFK to ADL......

My family (2 adults and 2 kids - 3yrs old and 9 months old) are going to USA next year (departing May 22 2010), we are flying into LAX or SFO, then doing our own thing internally, then flying from NYC back to Adelaide (June 12 2010).
We have enough Qantas Frequent Flyer points for the 2 adults and also the 9 month old (we only need to pay taxes for her). So my dilemma is we need to get our 3 yr old son on the same flights as us on (JFK - LAX - BRIS - ADL) on Qantas.
so do i book the frequent flyer flights for the 2 adults and 9 month old and hold off and wait until Qantas release sale fares to the USA then book my 3 yr old on the same flights as us (only pay 75% of fare as he is a child).
OR..... do i just book the Qantas frequent flyer points from JFK to Adl for all 4 of us, then maybe wait for some one way sale fares say on V Australia to get over to USA, knowing that we aer all confirmed on the Qantas flight from JFK to ADL......