M.W.
I've heard from many moms that they seemed to have more milk the 2nd time! It was true for me! My milk dried up at 6 months with our first. I was able to nurse till 18 months with our second!
The biggest thing you can do is to nurse on demand! It builds your supply up from the beginning. Let your baby use YOU for a nuk at first. The suckling tells your body to produce milk! And it comforts the baby.
As for pumping. IF you are going to be home with your baby there is really no need to build up a huge excess suply of milk. So, in that case, I would just use what you have for a pump. Our second nursed exclusively for 9 months and NEVER ended up taking a bottle so I had a whole freezer full of milk (probably a 6 month supply) that I ended up throwing away.... When our next is born in September I"m not even going to worry about trying to store up a bunch of milk. I'll just nurse on demand and pump when I'm uncomfortable.
Good luck. Expect the best and just go with the flow!