i was hooking up with friends who were travelling around africa so i just booked everything on arrival!! flights were 630 euro.......internal flight from dar to kili was about 100$ i think, kili to zan was about 130$ and zan to dar was about 80$ - i stayed in lodges mainly - L' oasis lodge in arusha- usually 50 us dollars a night - managed to stay here for 15 us$ as nobody was staying in their hostel section so we were upgraded for free!....safari is about 320Us$.....nungwui, most cabins cost about $20, basic with a bathroom......again as it was off season, i had my own cabin for 12$ per night- friends paid 20$ between them.....snorkelling for a day was really cheap too....in total my trip including spending money, flights, accomodation and tonnes of souvenirs (stone town is fantastic for paintings and wooden carvings) was 1500 euro.......