In LAX, the oneworld lounge in the TBIT terminal is the choice:
http://www.flyertalk.com/forum/ameri...er-thread.html
There are links to Qantas lounge information in the QF forum (with a little cheat sheet regarding access):
http://www.flyertalk.com/forum/qanta...s-notices.html
Qantas Club information
Australian Lounges - Domestic and International
QP-D = Domestic Qantas Club (Pub ) - for QC Members (inc SG & WP), OWS, OWE and J
QP-I = International Qantas Club - for QC Members (inc SG & WP), OWS, OWE, J and F
QP-JD = Domestic Business Lounge in BNE, SYD and MEL - for WP, OWE and J - must be travelling on QF or JQ
FL = International F Lounge in SYD and MEL - for WP and OWE
T(X) = Terminal in SYD - T1 (Int), T2 (Dom), T3 (Main QF Dom terminal)
Overseas Lounges
New Zealand - International Lounges in Auckland
US and Hawaii - Lounges in New York, Los Angeles and Honolulu
South Pacific - Lounges in Fiji and Noumea
Europe - Lounges in London and Frankfurt
So your itinerary on QF 1, in F, on 31 Dec 2012 might look like:
31DEC12 15:00-17:00 SYD T1 FL - able to guest X
And the ongoing The (QF FF/QP) OW Lounge Info Thread is well worth a read.