Sorry to be controversial and go against the flow, but as someone who struggled with Bfeeding for several weeks (but then went on to do it for 18 months), a bottle around can really help when you need it. Only Oscar22 knows how she feels about it, but the flip side of the coin is that you avoid using a bottle because everyone tells you not to and then you end up with a baby who refuses to take one point blank and you're stuck for 6 months unable to go anywhere without your baby for more than two or three hours!
Last time, I gave a bottle of EBM (my daughter didn't have formula until she was 6 months old, and weaning) once a week, but that was too little and by 8 weeks she refused the bottle completely. This time I intend to use EBM 2/3 times a week, just so that I can have the freedom to do other things. It is something worth considering!
Anyway, back to your question, I didn't get on with any bottles before, but this time have gone for the Tommee Tippee closer to nature range. You will need a steriliser anyway, because once you start weaning at 6 months, you will still need to sterlise! Usually the bottles come free with the steriliser. Also, another consideration is that if you leave it, you may well be skint by the time the baby gets to 6 months and you have so much to buy then, but its too late by then to have it as a present! Certainly, I found it to be a real struggle once my Mat pay dropped - having to buy extra things then was not good, but again this will depend on your situation!
As for sterilisers, I've gone for a microwave one this time - last time I had a steam one, but found that it was bulky and needed to be out all the time, which didn't work in my very small kitchen!
HTH