ka9taw
I think your best bet would be to ask QF or CX's RTW desk. Go have a look at travel.com.au North America tab and you'll find something to find fares. There's a QF/BA/AA/CX/LA Circle Pacific ex-Australia CIRMJQF/ONE1W for A$5,512.
See:
http://www3.travel.com.au/everest/in...JhbmNlX1R5cGU9 JkR1cmF0aW9uPTAmZGF5PTcmbW9uPTEtMjAwMSZNPTUmRmFyZV 9TaGVldD1DSVJNUFFGL09ORS9XJlVuaXF1ZV9Obz01NiZTRUxD T0RFPTEmVmlld1RoaW5nPVIg
and:
http://www3.travel.com.au/everest/in...JhbmNlX1R5cGU9 JkR1cmF0aW9uPTAmZGF5PTcmbW9uPTEtMjAwMSZNPTUmRmFyZV 9TaGVldD1DSVJNSlFGL09ORTFXJlVuaXF1ZV9Obz01NiZTRUxD T0RFPTEmVmlld1RoaW5nPVIg
For that BKK-SIN leg, I think you can go AY or take CX via HKG. Should be very doable. Come back via EZE or SCL to get more miles!
Other combos (in order of ascending fares) are: AR/MH, NH/NZ, AN, NZ, SQ, QF/BA/AA/LA/CX, AR/TG, AR/SQ, MH/UA, CX/UA, AN/UA, QF/NW/FJ (Air Pacific), QF/UA, QF/DL/FJ, QF/JL.
[This message has been edited by terenz (edited 01-06-2001).]