Oneworld RTW (Explorer) prices are available online somewhere (although I can't find them).

You can "book" a fake itenerary using the flight planning tool downloadable from:

http://www.oneworld.com/ow/timetables

This software used to price it, but that function seems to have broken some time last year.

With the explorer, you pay based on Class of Service and the # of continents you visit. Last one I book, IIRC, was 4 continents, first class for something along the lines of $12k + tax.