I really hope it works out for you. Here are the costs I spend on living here, a small town in the Coast:
Note that all values are in Brazilian Reals:
1) Rent: 600 for a big house, 5 rooms, it’s very relative, you have to look hard but you can find at this price.
2) Electricity: 80, using energy saving lights.
3) Water: 40
4) Food: A couple, plus three kids of 5, 3 and 1, we spend maybe 1000 reais. Great fruits and vegetables, decent meat.
5) Bus: 2.2
6) Internet + fixed telephone + satellite TV: 120
7) School: private, 120 per kid
8) Furniture, electronics, clothes, I would maybe say are more expensive here than in the USA or Europe where you can find discount stores but even that I am not sure, for furniture and clothes I have my doubts, definitely electronics, computers and cars are much more expensive here.
9) Beer, 1 litter: 2.8 reais
10) Restaurants: Basic popular dish for one person 7-11 reais, quite good actually (rice with beans and a bit of fish or meat), more elaborate dishes can go up to 50-60 per person, or even more.
11) Coca-cola, 1.5 litters: 2.5 reais
Those values depend a lot on where you live, we live in a small city in the beach if you go to big cities you will have to pay much more for rent and transportation and private schools, but food, telephone and internet will be even cheaper. The advantage of big cities is that there is a lot of work, problem is that it’s more stressing to live there. It all depends on what you really want. I have heard that Rio is great, but can be dangerous. All Brazil is dangerous, but violent crimes are more often in big cities, where we live, it happens less but small crime such as robberies are frequent. Lima I know it and find it ugly but my brother lives there and says it’s quite nice. I love Buenos Aires, it’s safe, pretty, not expensive, certainly cheaper than Rio and is very European-like, it has a Mediterranean feeling like Barcelona and the best meat in the world. In any case in Lima, Buenos Aires or Rio there is a lot of work and specially if you speak English, you can always end up giving English lessons and do quite well, not rich, but decent. My wife gives English lessons here and loves it. Even in a small Brazilian town people want to learn English.