My husband and I plan to take a RTW trip between May-June. Being novice travelers, we're looking for input on where we plan to go. We'll likely fly out of New York and would like to visit Sydney, Auckland, Beijing (with possible trip to Tibet from there), and either Tanzania or Kenya. For you seasoned travelers out there: is this do-able? Is there a particular order that makes the most sense time- and cost-wise? For those who have been to Tanzania and/or Kenya, do you advise one over the other for going on safari? I'm a little worried about traveling to this area after the rainy season - will a lot of areas be washed out?