Flight Itinerary

Ok so my initial dream itinerary was: Maui -New Zealand-Sydney,Aust- Bali, Indo- Thailand- Nepal- South Africa- Buenos Aires- Maui. Yesterday I started researching flights and the first website (Airtreks.com) quoted me $5,200- 7,800 depending on my dates. They also added in the following places, which i can stay over in or just get a quick layover: Kuala Lumpur, Delhi, London, San Jose, LA. However with them i would have to buy my own ticket to Honolulu and back to Maui. Today I called (airbrokers.com) and was quoted $5,300 for the following route: Honolulu-Fiji-Auckland -Sydney-Bali-Singapore -Bangkok-Kathmandu-Bangkok-Johannesburg-London-Honolulu. Again I would have to buy my ticket to Honolulu and back. Tonight I found a company called OneWorld, they offer up to 16 stops in 3 continents $3,900, 4 Continents $4,100, 5 Continents $4,900. With them I can start from Maui and I only have to confirm the dates/location for my first flight. I can make the rest up as I go!!! Some minor fee's might apply the for that kind of flexibility I'm willing to pay a lil more. The downside is that without having a fixed schedule... I might not come back for a while :) I'm gonna call them tomorrow!! If anyone else knows secrets about how to get the best fare/route for traveling the world, please let me know!!!