There are two Safaris, a Sunrise and a Sunset. Unfortunately, they're limited to Concierge Level guests only. Once you're in concierge, the Sunrise Safari costs $50 and includes breakfast at Tusker House in the Animal Kingdom. I don't know how much the Sunset Safari costs. The Safaris are very small, in terms of guests allowed on them, and last much longer (Sunrise is 45 minutes), stopping to allow photographs and so on.
Both restaurants, Boma and Jiko, get rave reviews. You can see their menus at allearsnet.com. Jiko is a bit more formal (not too daunting, though, from the sounds of it). Boma is a buffet, though it's set up in "pods" instead of one long pile of steamer trays. You can have breakfast and dinner at Boma, I forget whether Jiko is open for anything but dinner. Jiko is more expensive. Boma is, I think, about $24 or $25 per person for dinner.
Someone's going to answer who's done these things, and isn't, like me, waiting for my first trip to the AKL, but I know how it is to be wildly excited and want some answers NOW!!!!
Love,
Kris