my DD was put straight onto forumla, by personal choice.

she was given a bottle when she was a couple of hours old and took to it with no problems at all, this was just a disposable hospital bottle.

she had a few days in special care they got us to bring in a couple of her bottles to get her used to them ready to go home.

we use AVENT bottles and are really happy with them, we have the electronic sterilizer and it keeps things sterile for 24hours.

i didnt bother with a warmer we either zap the water for a few seconds before adding the powder or while its warm she has it at room temp.