How fantastic!
While you have that much to splurge on airfares, it SOOOOO has to be a northern Italy escapade! Venice, train to Milan or Florence, Siena then across to the Cinque Terre and splurging in a luxury little hotel like this one...
http://www.torrettas.com/Seafood dinners, vineyard walks, Mediterranean views... I'll show you the way if you need a guide!!!!!!!
Forget Asia or anywhere nearby. Catch a cheap Jetstar fare there any day!!!