We're taking an overlanding tour from Joberg, up through Zimbabwe to Vic Falls and back through Botswana to Joberg. Probably sharing trucks with another family or two but over three weeks with guide, cook and driver for approx £800 ea (not inc flights). Really looking forward to it as been to Tanzania and Ethiopia before but never with family and, more importantly, never with decent camera!
Also just booked a week in the Netherlands over Easter, staying in a safari tent in a safari park. Plan is to get used to lens and try out some of these suggestions. I'll let you know how I get on