I am in the process of setting up my first binder, too. I have a zippered binder with a lot of pockets, and I have full size page protectors. I ordered some currency protector sheets from eBay, and a friend of mine had a bunch of trading card sheets he wasn't using and he just gave them to me.
I still need to get myself a calculator and some type of labeled dividers. I'm not sure how I'm going to organize everything- right now, I'm using a 5x7 photo album and everything is just organized by store, but I don't think that will work with hundreds of coupons.