Hi Rosy,
You may get a few answers in this forum, there are some of us who have offered bottles. Are you going to be expressing from work? Have you read the "tips for how to give your baby a bottle" sticky message at the top of this forum?
From what I understand, you should get a nipple that looks similar to your own. A really slow flow bottle will be the most compatible with nursing. If your baby has colic, Dr Browns are supposed to be good, but kinda a pain to wash. Some moms like Avent bottles and use the sterilizer and electric pump attachements.
I give my day care baby a bottle sometimes and he uses Munchkin brand. I like the nipples on those, and if I ever need to give my own child a bottle, that is one I would try.