I think that you should try breast feeding for the first few days at the very least, because you will be giving your baby colostrum which is MORE than just milk
LLLI | What is colostrum?
I have already voiced an opinion on terry nappies in another thread. They are more work but by far cheaper, as well as not filling your wheelie bin with stinking waste. I wouldn't pay for laundering - sluice off solids in a toilet flush - soak in a bucket with some bleach added - then wash them seperately in a boil wash.
PS as for morning sickness - sorry just put up with it - it passes. I had the option of thalidomide - glad I didnt take it