Saw a few posts a little further back that were having trouble finding RTW tickets/planning. Came across this gem of a site....give your a good rough estimate and finds flights for your trips. I'm sure you can find cheaper flights etc, but it still does mostly everything for ya. http://www.longhaultravel.ca
hope you enjoy.
Where I've been: Canada, United States, Mexico, Fiji, New Zealand, Australia, Thailand, Laos, Cambodia, Vietnam, Phillipines, Japan, China, Germany, Austria, Switzerland, Italy, Spain, France, Belgium, Holland, England.