Who has done a Kenyan safari in January?

I'm going in Jan. 2010. I understand the migratory animals will be in Tanzania but does that mean that absolutely NO zebras or wildebeests will be in Kenya at all? Also, it was incredibly dusty when I went in Aug. 07. Is it very dusty year round? If you have done a safari in January, how would you rate the animal viewing? I'm going specifically for photography. Thanks!!