I'm planning an extended stay in Southern Africa. I've never been there before. I'm excited to do a once in a lifetime safari but overwhelmed with the vast array of options. I'm looking to do a safari in Botswana and another in Zambia. Do folks think the experience will be different enough in these two countries to justify the expense and time? Can anyone describe how they would be different? Also, what would be the BEST camp in each of these countries? Any recommendations for tour providers? What types of requirements/questions should I be considering? Thanks a million!