I bought absolutely nothing and it worked out fine
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Companies make no money out of bfing mums so are very keen to try to convince you that you will need a lot of equipment, which you honestly don't.
If you are after a feeding bra then many local NCT branches have a volunteer Bra Fitter and they offer a great service. You can locate you nearest NCT branch here.
Please don't buy bottles or formula, research has shown that you are much likely to give up if you have them in the house. Plus in these days of 24 hour supermarkets, its no big effort if you do decide to buy formula after the baby is born.
If you do decide to express then you may find hand expressing works for you. I'd wait until the baby is here and see how things are going before you decide to buy a pump. I did have a pump with DC1 but hardly managed to express a drop, he was obviously getting loads out though as he was a right chubby monkey 
FWIW I've had two and have never used nipple cream, have used breastpads though.
Haven't bought any Bfing tops either. I've always used a vest top with a Cardi, the Waterfall Cardis are ideal.
Second too what Marzipan said about putting the BFing helpline numbers in your phone. You could also find out if your local LLL, ABM and NCT have local Bfing Counsellors and get their numbers too, just in case.
It's also a good idea to find out where you local Bfing Support Groups are too and try to go to them before the baby is born, you don't have to wait until the baby arrives.
Oh, and add Kellymom to your favourites.
Keep posting and let us all know how you get on 