I think I had one big box of size 1 nappies, plus a small pack of them to take into hospital with me, and after that went on to size 2s. DS was a fairly big baby, though, so tiddlers may need to stay on size 1 a bit longer!
And Lansinoh is bloomin' expensive compared to other nipple creams, but it's well worth the money, IMO. It moisturies, and soothes the pain, much better than any other brands I tried.